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    407 Products

    Mil. Spec. Washers

    These washers are manufactured and tested to strict U.S. military standards for material and construction. They take the pressure off screws and nuts to protect mounting surfaces.
    Steel
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    Low-Friction Cadmium-Plated Steel—The plating reduces friction between the washer, fastener, and mounting surface to prevent sticking when fastening and loosening. It also creates a barrier against rust that's comparable to zinc yellow-chromate plating.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Low-Friction Cadmium-Plated Steel
    No. 0
    0.063"0.099"0.015" to 0.017"NAS620-010000000000000000
    No. 1
    0.078"0.188"0.016" to 0.025"MS27183-11000000000000000
    No. 2
    0.089"0.149"0.015" to 0.017"NAS620-2100000000000000
    No. 2
    0.094"0.250"0.016" to 0.025"MS27183-2ASME B18.21.11000000000000000
    No. 2
    0.099"0.250"0.029" to 0.035"AN960-2NAS1149-FN232P1000000000000000
    No. 3
    0.102"0.180"0.015" to 0.017"NAS620-3L25000000000000
    No. 3
    0.102"0.180"0.031" to 0.033"NAS620-3250000000000000
    No. 3
    0.125"0.250"0.017" to 0.028"MS27183-31000000000000000
    No. 4
    0.115"0.209"0.015" to 0.017"NAS620-4L1000000000000000
    No. 4
    0.115"0.209"0.031" to 0.033"NAS620-41000000000000000
    No. 4
    0.125"0.312"0.014" to 0.018"AN960-4LNAS1149-FN416P1000000000000000
    No. 4
    0.125"0.312"0.025" to 0.040"MS27183-4ASME B18.21.11000000000000000
    No. 4
    0.125"0.312"0.029" to 0.035"AN960-4ASME B18.21.1, NAS1149-FN432P1000000000000000
    No. 4
    0.125"0.375"0.025" to 0.040"MS27183-441000000000000000
    No. 5
    0.128"0.238"0.015" to 0.017"NAS620-5L100000000000000
    No. 5
    0.128"0.238"0.031" to 0.033"NAS620-52500000000000000
    No. 5
    0.141"0.281"0.025" to 0.040"MS27183-451000000000000000
    No. 6
    0.143"0.267"0.015" to 0.017"NAS620-6L100000000000000
    No. 6
    0.143"0.267"0.031" to 0.033"NAS620-61000000000000000
    No. 6
    0.149"0.375"0.014" to 0.018"AN960-6LNAS1149-FN616P1000000000000000
    No. 6
    0.149"0.375"0.029" to 0.035"AN960-6NAS1149-FN632P1000000000000000
    No. 6
    0.156"0.250"0.013" to 0.020"MS27183-431000000000000000
    No. 6
    0.156"0.312"0.027" to 0.048"MS27183-51000000000000000
    No. 6
    0.156"0.375"0.036" to 0.065"MS27183-6ASME B18.21.11000000000000000
    No. 8
    0.169"0.304"0.015" to 0.017"NAS620-8L2500000000000000
    No. 8
    0.169"0.304"0.031" to 0.033"NAS620-81000000000000000
    No. 8
    0.174"0.375"0.014" to 0.018"AN960-8LNAS1149-FN816P1000000000000000
    No. 8
    0.174"0.375"0.029" to 0.035"AN960-8NAS1149-FN832P1000000000000000
    No. 8
    0.188"0.375"0.036" to 0.065"MS27183-71000000000000000
    No. 8
    0.188"0.438"0.036" to 0.065"MS27183-41ASME B18.21.110000000000000000
    No. 8
    0.188"0.500"0.051" to 0.080"MS27183-461000000000000000
    No. 10
    0.195"0.354"0.031" to 0.033"NAS620-10L100000000000000
    No. 10
    0.195"0.354"0.062" to 0.064"NAS620-10100000000000000
    No. 10
    0.203"0.438"0.029" to 0.035"AN960-10LNAS1149-F0332P1000000000000000
    No. 10
    0.203"0.438"0.059" to 0.067"AN960-10NAS1149-F0363P1000000000000000
    No. 10
    0.203"0.875"0.053" to 0.073"AN970-3NASM97010000000000000000
    No. 10
    0.219"0.365"0.025" to 0.040"MS27183-471000000000000000
    No. 10
    0.219"0.438"0.036" to 0.065"MS27183-81000000000000000
    No. 10
    0.219"0.500"0.036" to 0.065"MS27183-42ASME B18.21.110000000000000000
    No. 12
    0.250"0.562"0.025" to 0.040"MS27183-491000000000000000
    No. 12
    0.250"0.562"0.051" to 0.080"MS27183-9ASME B18.21.110000000000000000
    No. 12
    0.250"0.625"0.025" to 0.040"MS27183-5010000000000000000
    No. 12
    0.250"0.938"0.051" to 0.080"MS27183-48250000000000000
    No. 12
    0.250"1.000"0.051" to 0.080"MS27183-51250000000000000
    1/4"
    0.255"0.468"0.031" to 0.033"NAS620-416L1000000000000000
    1/4"
    0.255"0.468"0.062" to 0.064"NAS620-4161000000000000000
    1/4"
    0.260"0.531"0.052" to 0.072"MS20002-42500000000000000
    1/4"
    0.265"0.500"0.029" to 0.035"AN960-416LNAS1149-F0432P1000000000000000
    1/4"
    0.265"0.500"0.059" to 0.067"AN960-416NAS1149-F0463P1000000000000000
    1/4"
    0.265"1.125"0.053" to 0.073"AN970-4NASM9705000000000000000
    1/4"
    0.281"0.625"0.051" to 0.080"MS27183-10ASME B18.21.110000000000000000
    1/4"
    0.281"0.734"0.051" to 0.080"MS27183-5210000000000000000
    1/4"
    0.312"0.500"0.027" to 0.048"MS27183-545000000000000000
    1/4"
    0.312"0.875"0.051" to 0.075"MS27183-532500000000000000
    1/4"
    0.313"0.734"0.051" to 0.080"MS27183-11ASME B18.21.15000000000000000
    5/16"
    0.324"0.593"0.052" to 0.072"MS20002-52500000000000000
    5/16"
    0.328"0.562"0.029" to 0.035"AN960-516LNAS1149-F0532P1000000000000000
    5/16"
    0.328"0.562"0.059" to 0.067"AN960-516NAS1149-F0563P1000000000000000
    5/16"
    0.328"1.375"0.053" to 0.073"AN970-5NASM9705000000000000000
    5/16"
    0.344"0.688"0.051" to 0.080"MS27183-12ASME B18.21.110000000000000000
    5/16"
    0.375"0.625"0.027" to 0.048"MS27183-56500000000000000
    5/16"
    0.375"0.734"0.064" to 0.094"MS27183-555000000000000000
    5/16"
    0.375"0.875"0.064" to 0.104"MS27183-13ASME B18.21.1500000000000000
    3/8"
    0.385"0.687"0.052" to 0.072"MS20002-62500000000000000
    3/8"
    0.390"0.625"0.029" to 0.035"AN960-616LNAS1149-F0632P1000000000000000
    3/8"
    0.390"0.625"0.059" to 0.067"AN960-616NAS1149-F0663P10000000000000000
    3/8"
    0.390"1.625"0.053" to 0.073"AN970-6NASM9702500000000000000
    3/8"
    0.406"0.812"0.051" to 0.080"MS27183-14ASME B18.21.1500000000000000
    3/8"
    0.406"0.875"0.051" to 0.070"MS27183-575000000000000000
    3/8"
    0.412"0.625"0.025" to 0.040"MS27183-58500000000000000
    3/8"
    0.438"0.875"0.051" to 0.080"MS27183-605000000000000000
    3/8"
    0.438"1.365"0.064" to 0.104"MS27183-591000000000000000
    3/8"
    0.438"1.625"0.051" to 0.104"MS27183-611000000000000000
    7/16"
    0.438"1.000"0.064" to 0.104"MS27183-155000000000000000
    7/16"
    0.451"0.781"0.052" to 0.072"MS20002-72500000000000000
    7/16"
    0.453"0.750"0.029" to 0.035"AN960-716LNAS1149-F0732P10000000000000000
    7/16"
    0.453"0.750"0.059" to 0.067"AN960-716NAS1149-F0763P10000000000000000
    7/16"
    0.453"1.812"0.099" to 0.119"AN970-7NASM9701000000000000000
    7/16"
    0.469"0.734"0.051" to 0.080"MS27183-625000000000000000
    7/16"
    0.469"0.922"0.051" to 0.080"MS27183-16ASME B18.21.15000000000000000
    7/16"
    0.500"1.250"0.064" to 0.104"MS27183-17ASME B18.21.15000000000000000
    1/2"
    0.515"0.875"0.029" to 0.035"AN960-816LNAS1149-F0832P10000000000000000
    1/2"
    0.515"0.875"0.052" to 0.072"MS20002-82500000000000000
    1/2"
    0.515"0.875"0.059" to 0.067"AN960-816NAS1149-F0863P10000000000000000
    1/2"
    0.515"2.000"0.099" to 0.119"AN970-8NASM9701000000000000000
    1/2"
    0.531"1.062"0.074" to 0.121"MS27183-18ASME B18.21.12500000000000000
    1/2"
    0.562"1.375"0.086" to 0.132"MS27183-19ASME B18.21.1100000000000000
    9/16"
    0.578"1.062"0.059" to 0.067"AN960-916NAS1149-F0963P5000000000000000
    9/16"
    0.578"2.188"0.115" to 0.135"AN970-9NASM97050000000000000
    9/16"
    0.579"0.968"0.052" to 0.072"MS20002-92500000000000000
    9/16"
    0.594"1.156"0.074" to 0.121"MS27183-20ASME B18.21.12500000000000000
    5/8"
    0.640"1.188"0.029" to 0.035"AN960-1016LNAS1149-F1032P500000000000000
    5/8"
    0.640"1.188"0.059" to 0.067"AN960-1016NAS1149-F1063P5000000000000000
    5/8"
    0.640"2.375"0.115" to 0.135"AN970-10NASM970500000000000000
    5/8"
    0.643"1.062"0.052" to 0.072"MS20002-101000000000000000
    5/8"
    0.656"1.312"0.074" to 0.121"MS27183-21ASME B18.21.12500000000000000
    5/8"
    0.656"2.125"0.080" to 0.115"MS27183-63500000000000000
    5/8"
    0.688"1.750"0.108" to 0.160"MS27183-22ASME B18.21.11000000000000000
    3/4"
    0.765"1.312"0.028" to 0.036"AN960-1216LNAS1149-F1232P5000000000000000
    3/4"
    0.765"1.312"0.086" to 0.094"AN960-1216LNAS1149-F1290P1000000000000000
    3/4"
    0.770"1.250"0.052" to 0.072"MS20002-121000000000000000
    3/4"
    0.812"1.469"0.108" to 0.160"MS27183-23ASME B18.21.11000000000000000
    3/4"
    0.812"2.000"0.122" to 0.177"MS27183-24ASME B18.21.1500000000000000
    7/8"
    0.890"1.500"0.028" to 0.036"AN960-1416LNAS1149-F1432P2500000000000000
    7/8"
    0.890"1.500"0.059" to 0.067"NAS1149-F1463P1000000000000000
    7/8"
    0.890"1.500"0.086" to 0.094"AN960-1416NAS1149-F1490P1000000000000000
    7/8"
    0.897"1.437"0.052" to 0.072"MS20002-141000000000000000
    7/8"
    0.938"1.750"0.108" to 0.160"MS27183-25ASME B18.21.11000000000000000
    7/8"
    0.938"2.250"0.136" to 0.192"MS27183-26ASME B18.21.1500000000000000
    1"
    1.015"1.750"0.028" to 0.036"AN960-1616LNAS1149-F1632P1000000000000000
    1"
    1.015"1.750"0.086" to 0.094"AN960-1616NAS1149-F1690P1000000000000000
    1"
    1.025"1.625"0.052" to 0.072"MS20002-16500000000000000
    1"
    1.062"2.000"0.108" to 0.160"MS27183-27ASME B18.21.11000000000000000
    1"
    1.062"2.500"0.136" to 0.192"MS27183-28ASME B18.21.110000000000000
    1 1/8"
    1.250"2.750"0.136" to 0.192"MS27183-29ASME B18.21.110000000000000
    1 1/4"
    1.375"3.000"0.136" to 0.192"MS27183-30ASME B18.21.110000000000000
    1 3/8"
    1.500"3.250"0.153" to 0.213"MS27183-31ASME B18.21.110000000000000
    1 1/2"
    1.625"3.500"0.153" to 0.213"MS27183-32ASME B18.21.110000000000000
    1 5/8"
    1.750"3.750"0.153" to 0.213"MS27183-33ASME B18.21.1100000000000000
    1 3/4"
    1.875"4.000"0.153" to 0.213"MS27183-34ASME B18.21.1100000000000000
    1 7/8"
    2.000"4.250"0.153" to 0.213"MS27183-35ASME B18.21.1100000000000000
    2"
    2.125"4.500"0.153" to 0.213"MS27183-36ASME B18.21.1100000000000000
     
    Copper
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    These have the best conductivity of all our metal washers. They're often used to secure electrical connections inside breaker panels and to fasten components on printed circuit boards. They're also the softest of all our metal washers, so they won't damage screws and nuts. However, copper washers aren't as corrosion resistant as brass washers, and will develop a green patina over time.
    Low-Friction Cadmium-Plated Copper—The plating reduces friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening. It also creates a barrier against rust.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil.
    Spec.
    Pkg.
    Qty.
    Pkg.
    Low-Friction Cadmium-Plated Copper
    7/16"
    0.443"0.683"0.048" to 0.054"AN901-4C10000000000000000
    1/2"
    0.505"0.745"0.048" to 0.054"AN901-5C1000000000000000
    9/16"
    0.568"0.808"0.048" to 0.054"AN901-6C1000000000000000
    3/4"
    0.755"0.995"0.048" to 0.054"AN901-8C1000000000000000
    7/8"
    0.880"1.120"0.048" to 0.054"AN901-10C500000000000000
    1"
    1.068"1.370"0.048" to 0.054"AN901-12C500000000000000
     

    Plastic Washers

    Image of Product. Front orientation. Washers. Plastic Washers.
    All of these washers are lightweight, nonconductive, and naturally rust resistant. They are commonly used in electronics and automation applications to take the pressure off screws and nuts and protect mounting surfaces.
    Low-Friction Lubricant-Filled Nylon—Reduce friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening.
    Low-Friction Impact-Resistant UHMW Polyethylene—The slippery surface reduces friction between the washer, fastener, and mounting surface to prevent sticking when fastening and loosening. These washers also resist bumps and vibration without cracking or denting.
    Chemical-Resistant High-Temperature PTFE—The most chemical-resistant plastic washers we offer, these stand up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. Their slippery surface reduces friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening. They are also good electrical insulators.
    Temp.
    Range, ° F
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.
    Specs. Met
    Color
    Pkg.
    Qty.
    Pkg.
    Low-Friction Lubricant-Filled Nylon
    No. 0
    0.065"0.188"0.008" to 0.012"Not Rated220Gray500000000000000
    No. 2
    0.083"0.250"0.018" to 0.022"Not Rated220Gray50000000000000
    No. 4
    0.120"0.220"0.028" to 0.034"Not Rated220Gray50000000000000
    No. 5
    0.140"0.410"0.037" to 0.043"Not Rated220Gray50000000000000
    No. 6
    0.142"0.312"0.028" to 0.034"Not Rated220Gray50000000000000
    No. 8
    0.173"0.375"0.028" to 0.034"Not Rated220Gray50000000000000
    No. 10
    0.201"0.460"0.028" to 0.034"Not Rated220Gray50000000000000
    No. 12
    0.250"0.562"0.060" to 0.067"Not Rated220ASME B18.21.1Gray50000000000000
    No. 12
    0.262"0.500"0.028" to 0.034"Not Rated220Gray50000000000000
    1/4"
    0.322"0.562"0.028" to 0.034"Not Rated220Gray50000000000000
    5/16"
    0.383"0.506"0.028" to 0.034"Not Rated220Gray50000000000000
    7/16"
    0.469"0.923"0.060" to 0.067"Not Rated220ASME B18.21.1Gray50000000000000
    1/2"
    0.530"0.880"0.028" to 0.034"Not Rated220Gray50000000000000
    9/16"
    0.594"1.156"0.089" to 0.099"Not Rated220ASME B18.21.1Gray50000000000000
    5/8"
    0.656"1.312"0.089" to 0.099"Not Rated220ASME B18.21.1Gray50000000000000
    3/4"
    0.812"1.469"0.120" to 0.130"Not Rated220ASME B18.21.1Gray50000000000000
    7/8"
    0.938"1.750"0.120" to 0.130"Not Rated220ASME B18.21.1Gray50000000000000
    1"
    1.062"2.000"0.120" to 0.130"Not Rated220ASME B18.21.1Gray50000000000000
    M2
    2.2 mm5.0 mm0.2 mm to 0.4 mmNot Rated220DIN 125Gray50000000000000
    M3
    3.2 mm7.0 mm0.4 mm to 0.6 mmNot Rated220DIN 125Gray50000000000000
    M4
    4.3 mm9.0 mm0.7 mm to 0.9 mmNot Rated220DIN 125Gray50000000000000
    M5
    5.5 mm10.0 mm0.9 mm to 1.1 mmNot Rated220DIN 125Gray50000000000000
    M6
    6.4 mm12.0 mm1.4 mm to 1.8 mmNot Rated220DIN 125Gray50000000000000
    M7
    7.4 mm14.0 mm1.4 mm to 1.8 mmNot Rated220DIN 125Gray50000000000000
    M8
    8.4 mm16.0 mm1.4 mm to 1.8 mmNot Rated220DIN 125Gray50000000000000
    M10
    10.5 mm20.0 mm1.8 mm to 2.2 mmNot Rated220DIN 125Gray50000000000000
    M12
    13.0 mm24.0 mm2.3 mm to 2.7 mmNot Rated220DIN 125Gray50000000000000
    M14
    15.0 mm28.0 mm2.3 mm to 2.7 mmNot Rated220DIN 125Gray50000000000000
    M16
    17.0 mm30.0 mm2.7 mm to 3.3 mmNot Rated220DIN 125Gray50000000000000
    M18
    19.0 mm34.0 mm2.7 mm to 3.3 mmNot Rated220DIN 125Gray50000000000000
    M20
    21.0 mm37.0 mm2.7 mm to 3.3 mmNot Rated220DIN 125Gray500000000000000
     
    Low-Friction Impact-Resistant UHMW Polyethylene
    No. 2
    0.094"0.188"0.026" to 0.036"Not Rated180Off-White250000000000000
    No. 4
    0.120"0.250"0.026" to 0.036"Not Rated180Off-White250000000000000
    No. 5
    0.126"0.315"0.029" to 0.033"Not Rated180Off-White2500000000000000
    No. 6
    0.150"0.375"0.026" to 0.036"Not Rated180Off-White250000000000000
    No. 8
    0.175"0.375"0.026" to 0.036"Not Rated180Off-White250000000000000
    No. 8
    0.188"0.438"0.036" to 0.065"-20180Off-White250000000000000
    No. 10
    0.203"0.438"0.026" to 0.036"Not Rated180Off-White250000000000000
    No. 10
    0.219"0.500"0.036" to 0.065"-20180Off-White250000000000000
    No. 12
    0.250"0.562"0.060" to 0.067"Not Rated180ASME B18.21.1Off-White1000000000000000
    1/4"
    0.265"0.500"0.026" to 0.036"Not Rated180Off-White250000000000000
    1/4"
    0.281"0.375"0.056" to 0.071"-20180ASME B18.22.1Off-White250000000000000
    1/4"
    0.281"0.625"0.051" to 0.080"-20180Off-White250000000000000
    1/4"
    0.281"0.734"0.056" to 0.071"-20180ASME B18.22.1Off-White250000000000000
    1/4"
    0.313"0.750"0.051" to 0.080"-20180ASME B18.22.1Off-White250000000000000
    5/16"
    0.328"0.562"0.026" to 0.036"Not Rated180Off-White250000000000000
    5/16"
    0.344"0.625"0.056" to 0.071"-20180ASME B18.22.1Off-White250000000000000
    5/16"
    0.344"0.688"0.051" to 0.080"-20180Off-White250000000000000
    3/8"
    0.390"0.625"0.026" to 0.036"Not Rated180Off-White250000000000000
    3/8"
    0.406"0.734"0.056" to 0.071"-20180ASME B18.22.1Off-White250000000000000
    3/8"
    0.406"0.812"0.051" to 0.080"-20180ASME B18.22.1Off-White250000000000000
    3/8"
    0.406"1.000"0.056" to 0.071"-20180ASME B18.22.1Off-White250000000000000
    7/16"
    0.469"0.922"0.060" to 0.067"Not Rated180ASME B18.21.1Off-White1000000000000000
    1/2"
    0.515"0.885"0.057" to 0.067"Not Rated180Off-White100000000000000
    1/2"
    0.531"1.000"0.056" to 0.071"-20180ASME B18.22.1Off-White100000000000000
    1/2"
    0.531"1.062"0.074" to 0.121"-20180Off-White100000000000000
    1/2"
    0.531"1.250"0.090" to 0.112"-20180ASME B18.22.1Off-White100000000000000
    1/2"
    0.563"1.375"0.086" to 0.132"-20180ASME B18.22.1Off-White100000000000000
    9/16"
    0.594"1.156"0.089" to 0.099"Not Rated180ASME B18.21.1Off-White100000000000000
    5/8"
    0.640"1.062"0.057" to 0.067"Not Rated180Off-White100000000000000
    5/8"
    0.656"1.250"0.090" to 0.112"-20180Off-White100000000000000
    5/8"
    0.656"1.312"0.074" to 0.121"-20180Off-White100000000000000
    3/4"
    0.765"1.312"0.057" to 0.067"Not Rated180Off-White100000000000000
    3/4"
    0.812"1.375"0.090" to 0.112"-20180ASME B18.22.1Off-White1000000000000000
    3/4"
    0.812"1.469"0.108" to 0.160"-20180Off-White1000000000000000
    7/8"
    0.935"1.750"0.115" to 0.130"Not Rated180ASME B18.21.1Off-White1000000000000000
    1"
    1.025"1.750"0.057" to 0.067"Not Rated180Off-White50000000000000
    1"
    1.062"1.370"0.090" to 0.112"-20180ASME B18.22.1Off-White50000000000000
    1"
    1.062"2.000"0.108" to 0.160"-20180Off-White50000000000000
    1 1/8"
    1.188"2.000"0.090" to 0.112"-20180ASME B18.22.1Off-White50000000000000
    1 1/8"
    1.250"2.250"0.108" to 0.160"-20180Off-White500000000000000
    1 1/4"
    1.312"2.250"0.146" to 0.174"-20180ASME B18.22.1Off-White500000000000000
    1 1/4"
    1.375"2.500"0.136" to 0.192"-20180Off-White500000000000000
    1 1/2"
    1.562"2.750"0.146" to 0.174"-20180ASME B18.22.1Off-White10000000000000
    1 1/2"
    1.625"3.000"0.136" to 0.192"-20180Off-White10000000000000
    M2
    2.1 mm5.0 mm0.7 mm to 0.9 mmNot Rated180Off-White1000000000000000
    M3
    3.2 mm8.0 mm0.7 mm to 0.9 mmNot Rated180Off-White1000000000000000
    M4
    4.3 mm9.0 mm0.7 mm to 0.9 mmNot Rated180Off-White1000000000000000
    M5
    5.3 mm11.0 mm0.9 mm to 1.1 mmNot Rated180Off-White1000000000000000
    M6
    6.4 mm12.0 mm1.5 mm to 1.7 mmNot Rated180Off-White50000000000000
    M7
    7.4 mm14.0 mm1.5 mm to 1.7 mmNot Rated180Off-White50000000000000
    M8
    8.4 mm18.0 mm1.9 mm to 2.1 mmNot Rated180Off-White50000000000000
    M10
    10.5 mm20.0 mm1.8 mm to 2.2 mm-30180DIN 125Off-White100000000000000
    M10
    10.5 mm22.0 mm2.1 mm to 2.6 mmNot Rated180Off-White50000000000000
    M12
    13.0 mm24.0 mm2.1 mm to 2.6 mmNot Rated180Off-White50000000000000
    M14
    15.0 mm30.0 mm2.8 mm to 3.5 mmNot Rated180Off-White10000000000000
    M16
    17.0 mm30.0 mm2.8 mm to 3.5 mmNot Rated180Off-White10000000000000
    M18
    19.0 mm34.0 mm2.8 mm to 3.5 mmNot Rated180Off-White10000000000000
    M20
    21.0 mm37.0 mm2.8 mm to 3.5 mmNot Rated180Off-White10000000000000
     
    Chemical-Resistant High-Temperature PTFE
    No. 2
    0.090"0.250"0.002" to 0.004"Not Rated500White100000000000000
    No. 2
    0.090"0.250"0.008" to 0.012"Not Rated500White100000000000000
    No. 2
    0.090"0.250"0.027" to 0.035"Not Rated500White100000000000000
    No. 2
    0.094"0.188"0.022" to 0.028"Not Rated450White2500000000000000
    No. 3
    0.116"0.250"0.027" to 0.035"Not Rated500White100000000000000
    No. 4
    0.124"0.375"0.035" to 0.045"Not Rated500White100000000000000
    No. 4
    0.125"0.250"0.002" to 0.004"Not Rated500White100000000000000
    No. 4
    0.125"0.250"0.008" to 0.012"Not Rated500White100000000000000
    No. 4
    0.125"0.312"0.025" to 0.040"Not Rated450White2500000000000000
    No. 4
    0.125"0.438"0.036" to 0.045"Not Rated450White2500000000000000
    No. 4
    0.137"0.250"0.008" to 0.012"Not Rated500White100000000000000
    No. 4
    0.137"0.250"0.027" to 0.035"Not Rated500White100000000000000
    No. 5
    0.137"0.500"0.027" to 0.035"Not Rated500White100000000000000
    No. 5
    0.137"0.625"0.027" to 0.035"Not Rated500White100000000000000
    No. 5
    0.141"0.281"0.028" to 0.036"Not Rated450White2500000000000000
    No. 5
    0.141"0.406"0.036" to 0.045"Not Rated450White2500000000000000
    No. 5
    0.145"0.500"0.027" to 0.035"Not Rated500White100000000000000
    No. 5
    0.150"0.312"0.045" to 0.055"Not Rated500White100000000000000
    No. 6
    0.156"0.312"0.028" to 0.036"Not Rated450White2500000000000000
    No. 6
    0.156"0.375"0.036" to 0.065"Not Rated450White2500000000000000
    No. 6
    0.156"0.438"0.035" to 0.045"Not Rated500White100000000000000
    No. 6
    0.156"0.562"0.027" to 0.035"Not Rated500White100000000000000
    No. 6
    0.156"0.750"0.027" to 0.035"Not Rated500White100000000000000
    No. 6
    0.156"1.000"0.027" to 0.035"Not Rated500White500000000000000
    No. 8
    0.187"1.000"0.027" to 0.035"Not Rated500White500000000000000
    No. 8
    0.187"1.000"0.057" to 0.067"Not Rated500White500000000000000
    No. 8
    0.188"0.375"0.036" to 0.045"Not Rated450White100000000000000
    No. 8
    0.188"0.438"0.036" to 0.065"Not Rated450White100000000000000
    No. 8
    0.188"0.500"0.035" to 0.045"Not Rated500White100000000000000
    No. 8
    0.188"0.625"0.056" to 0.071"Not Rated450White100000000000000
    No. 8
    0.188"0.875"0.036" to 0.065"Not Rated450White100000000000000
    No. 8
    0.197"0.280"0.013" to 0.017"Not Rated500White100000000000000
    No. 8
    0.197"0.280"0.045" to 0.055"Not Rated500White100000000000000
    No. 8
    0.197"0.750"0.027" to 0.035"Not Rated500White100000000000000
    No. 8
    0.200"0.303"0.022" to 0.028"Not Rated500White100000000000000
    No. 10
    0.203"0.406"0.036" to 0.045"Not Rated450White2500000000000000
    No. 10
    0.203"0.562"0.035" to 0.045"Not Rated500White100000000000000
    No. 10
    0.203"1.000"0.027" to 0.035"Not Rated500White500000000000000
    No. 10
    0.203"1.000"0.057" to 0.067"Not Rated500White500000000000000
    No. 10
    0.203"1.250"0.057" to 0.067"Not Rated500White500000000000000
    No. 10
    0.203"1.500"0.027" to 0.035"Not Rated500White500000000000000
    No. 10
    0.210"0.875"0.017" to 0.023"Not Rated500White100000000000000
    No. 10
    0.219"0.500"0.036" to 0.065"Not Rated450White2500000000000000
    No. 12
    0.245"0.375"0.027" to 0.036"Not Rated450White100000000000000
    No. 12
    0.250"0.500"0.057" to 0.067"Not Rated500White100000000000000
    No. 12
    0.250"0.562"0.051" to 0.080"Not Rated450White100000000000000
    No. 12
    0.250"0.665"0.193" to 0.203"Not Rated500White500000000000000
    No. 12
    0.250"0.815"0.203" to 0.213"Not Rated500White10000000000000
    No. 12
    0.250"1.000"0.027" to 0.035"Not Rated500White500000000000000
    No. 12
    0.250"1.000"0.057" to 0.067"Not Rated500White500000000000000
    No. 12
    0.250"1.250"0.027" to 0.035"Not Rated500White500000000000000
    No. 12
    0.250"1.250"0.057" to 0.067"Not Rated500White500000000000000
    No. 12
    0.250"1.500"0.027" to 0.035"Not Rated500White500000000000000
    No. 12
    0.250"1.500"0.057" to 0.067"Not Rated500White10000000000000
    1/4"
    0.253"0.814"0.235" to 0.245"Not Rated500White10000000000000
    1/4"
    0.260"0.337"0.022" to 0.028"Not Rated500White100000000000000
    1/4"
    0.281"0.500"0.027" to 0.035"Not Rated500White100000000000000
    1/4"
    0.281"0.625"0.051" to 0.080"Not Rated450White100000000000000
    1/4"
    0.281"0.735"0.057" to 0.067"Not Rated500White1000000000000000
    1/4"
    0.281"0.875"0.056" to 0.071"Not Rated450White100000000000000
    1/4"
    0.281"1.000"0.057" to 0.067"Not Rated500White500000000000000
    1/4"
    0.281"1.250"0.027" to 0.035"Not Rated500White500000000000000
    1/4"
    0.281"1.250"0.057" to 0.067"Not Rated500White500000000000000
    1/4"
    0.281"1.500"0.027" to 0.035"Not Rated500White500000000000000
    1/4"
    0.281"1.500"0.057" to 0.067"Not Rated500White10000000000000
    5/16"
    0.317"0.562"0.028" to 0.036"Not Rated450White100000000000000
    5/16"
    0.325"0.750"0.017" to 0.023"Not Rated500White100000000000000
    5/16"
    0.344"0.625"0.056" to 0.071"Not Rated450White100000000000000
    5/16"
    0.344"0.875"0.074" to 0.086"Not Rated500White500000000000000
    5/16"
    0.344"1.000"0.027" to 0.035"Not Rated500White500000000000000
    5/16"
    0.344"1.000"0.057" to 0.067"Not Rated500White500000000000000
    5/16"
    0.344"1.125"0.056" to 0.071"Not Rated450White1000000000000000
    5/16"
    0.344"1.250"0.027" to 0.035"Not Rated500White500000000000000
    5/16"
    0.344"1.250"0.057" to 0.067"Not Rated500White500000000000000
    5/16"
    0.344"1.500"0.027" to 0.035"Not Rated500White500000000000000
    5/16"
    0.344"1.500"0.057" to 0.067"Not Rated500White10000000000000
    5/16"
    0.370"1.090"0.226" to 0.236"Not Rated500White10000000000000
    5/16"
    0.372"0.753"0.185" to 0.195"Not Rated500White10000000000000
    3/8"
    0.375"1.250"0.057" to 0.067"Not Rated500White10000000000000
    3/8"
    0.375"1.500"0.057" to 0.067"Not Rated500White10000000000000
    3/8"
    0.380"0.812"0.027" to 0.035"Not Rated500White1000000000000000
    3/8"
    0.390"0.875"0.057" to 0.067"Not Rated500White1000000000000000
    3/8"
    0.390"1.750"0.057" to 0.067"Not Rated500White10000000000000
    3/8"
    0.390"2.000"0.027" to 0.035"Not Rated500White10000000000000
    3/8"
    0.390"2.000"0.057" to 0.067"Not Rated500White10000000000000
    3/8"
    0.406"0.625"0.064" to 0.104"Not Rated450White1000000000000000
    3/8"
    0.406"0.734"0.056" to 0.071"Not Rated450White1000000000000000
    3/8"
    0.406"1.000"0.057" to 0.067"Not Rated500White1000000000000000
    7/16"
    0.469"0.875"0.056" to 0.071"Not Rated450White1000000000000000
    7/16"
    0.469"0.922"0.051" to 0.080"Not Rated450White1000000000000000
    1/2"
    0.500"0.688"0.027" to 0.035"Not Rated500White100000000000000
    1/2"
    0.500"1.003"0.057" to 0.067"Not Rated500White500000000000000
    1/2"
    0.531"1.062"0.074" to 0.121"Not Rated450White50000000000000
    1/2"
    0.531"1.250"0.093" to 0.107"Not Rated500White10000000000000
    1/2"
    0.531"1.750"0.027" to 0.035"Not Rated500White10000000000000
    1/2"
    0.531"1.750"0.057" to 0.067"Not Rated500White10000000000000
    1/2"
    0.531"2.000"0.027" to 0.035"Not Rated500White10000000000000
    1/2"
    0.531"2.000"0.057" to 0.067"Not Rated500White10000000000000
    1/2"
    0.532"1.500"0.017" to 0.023"Not Rated500White500000000000000
    1/2"
    0.535"2.500"0.047" to 0.080"Not Rated450White1000000000000000
    1/2"
    0.562"1.375"0.086" to 0.132"Not Rated450White50000000000000
    5/8"
    0.656"0.938"0.090" to 0.112"Not Rated450White500000000000000
    5/8"
    0.656"1.250"0.090" to 0.112"Not Rated450White500000000000000
    5/8"
    0.656"1.312"0.074" to 0.121"Not Rated450White500000000000000
    5/8"
    0.656"1.750"0.093" to 0.107"Not Rated500White10000000000000
    5/8"
    0.656"2.000"0.057" to 0.067"Not Rated500White10000000000000
    5/8"
    0.656"2.500"0.057" to 0.067"Not Rated500White100000000000000
    3/4"
    0.750"1.000"0.057" to 0.067"Not Rated500White1000000000000000
    3/4"
    0.750"1.250"0.057" to 0.067"Not Rated500White500000000000000
    3/4"
    0.750"1.500"0.057" to 0.067"Not Rated500White500000000000000
    3/4"
    0.780"1.630"0.298" to 0.308"Not Rated500White100000000000000
    3/4"
    0.780"1.633"0.330" to 0.350"Not Rated500White100000000000000
    3/4"
    0.812"1.375"0.090" to 0.112"Not Rated450White10000000000000
    3/4"
    0.812"2.000"0.093" to 0.107"Not Rated500White100000000000000
    3/4"
    0.812"2.250"0.057" to 0.067"Not Rated500White100000000000000
    3/4"
    0.812"2.500"0.057" to 0.067"Not Rated500White100000000000000
    7/8"
    0.875"1.500"0.057" to 0.067"Not Rated500White10000000000000
    7/8"
    0.875"2.000"0.087" to 0.099"Not Rated500White10000000000000
    1"
    1.000"2.500"0.087" to 0.099"Not Rated500White100000000000000
    1"
    1.060"1.990"0.018" to 0.023"Not Rated500White10000000000000
    1"
    1.060"1.990"0.045" to 0.055"Not Rated500White10000000000000
    1"
    1.060"1.990"0.087" to 0.099"Not Rated500White100000000000000
    1"
    1.060"1.990"0.115" to 0.135"Not Rated500White10000000000000
    1"
    1.060"1.990"0.298" to 0.308"Not Rated500White100000000000000
    1"
    1.062"1.370"0.018" to 0.023"Not Rated500White10000000000000
    1"
    1.062"1.370"0.057" to 0.067"Not Rated500White10000000000000
    1"
    1.062"1.370"0.115" to 0.135"Not Rated500White10000000000000
    1"
    1.062"1.750"0.090" to 0.112"Not Rated450White10000000000000
    1"
    1.062"2.000"0.057" to 0.067"Not Rated500White10000000000000
    1"
    1.062"2.250"0.057" to 0.067"Not Rated500White100000000000000
    1"
    1.062"2.500"0.057" to 0.067"Not Rated500White100000000000000
    1"
    1.062"3.000"0.057" to 0.067"Not Rated500White100000000000000
    1"
    1.130"1.370"0.045" to 0.055"Not Rated500White10000000000000
    1"
    1.130"1.370"0.090" to 0.110"Not Rated500White10000000000000
    1 1/8"
    1.188"1.370"0.064" to 0.076"Not Rated500White10000000000000
    1 1/8"
    1.250"1.500"0.009" to 0.012"Not Rated500White10000000000000
    1 1/8"
    1.250"1.500"0.087" to 0.099"Not Rated500White10000000000000
    1 1/8"
    1.250"2.062"0.018" to 0.023"Not Rated500White10000000000000
    1 1/8"
    1.250"2.062"0.115" to 0.135"Not Rated500White10000000000000
    1 1/4"
    1.380"1.531"0.018" to 0.023"Not Rated500White10000000000000
    1 1/4"
    1.380"1.531"0.057" to 0.067"Not Rated500White10000000000000
    1 3/8"
    1.500"2.585"0.018" to 0.023"Not Rated500White10000000000000
    1 3/8"
    1.500"2.585"0.115" to 0.135"Not Rated500White10000000000000
    1 1/2"
    1.562"2.500"0.018" to 0.023"Not Rated500White10000000000000
    1 1/2"
    1.562"2.500"0.115" to 0.135"Not Rated500White10000000000000
    1 1/2"
    1.625"2.500"0.018" to 0.023"Not Rated500White10000000000000
    1 1/2"
    1.625"2.500"0.115" to 0.135"Not Rated500White10000000000000
    1 1/2"
    1.625"3.000"0.136" to 0.192"Not Rated450White10000000000000
    M2
    2.2 mm5.0 mm0.7 mm to 0.9 mmNot Rated500White500000000000000
    M2.5
    2.7 mm5.0 mm0.3 mm to 0.5 mmNot Rated500White5000000000000000
    M2.5
    2.7 mm6.0 mm0.4 mm to 0.6 mmNot Rated450White5000000000000000
    M3
    3.2 mm6.0 mm0.5 mm to 0.6 mmNot Rated450White2500000000000000
    M3
    3.2 mm8.0 mm0.7 mm to 0.9 mmNot Rated500White500000000000000
    M3
    3.4 mm7.0 mm0.5 mm to 0.6 mmNot Rated450White2500000000000000
    M3.5
    3.7 mm8.0 mm0.6 mm to 0.9 mmNot Rated500White250000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmNot Rated450White2500000000000000
    M4
    4.3 mm9.0 mm0.7 mm to 0.9 mmNot Rated500White500000000000000
    M4
    4.6 mm12.0 mm1.4 mm to 1.8 mmNot Rated450White2500000000000000
    M5
    5.3 mm9.0 mm0.9 mm to 1.1 mmNot Rated450White2500000000000000
    M5
    5.3 mm10.0 mm0.9 mm to 1.1 mmNot Rated450White100000000000000
    M5
    5.3 mm11.0 mm0.9 mm to 1.1 mmNot Rated500White250000000000000
    M5
    5.6 mm15.0 mm1.8 mm to 2.2 mmNot Rated450White100000000000000
    M6
    6.4 mm12.0 mm1.4 mm to 1.8 mmNot Rated500White250000000000000
    M6
    6.8 mm17.0 mm2.7 mm to 3.5 mmNot Rated450White100000000000000
    M7
    7.4 mm14.0 mm1.4 mm to 1.8 mmNot Rated500White250000000000000
    M8
    8.4 mm15.0 mm1.4 mm to 1.8 mmNot Rated450White100000000000000
    M8
    8.4 mm18.0 mm1.9 mm to 2.2 mmNot Rated500White100000000000000
    M8
    8.7 mm16.0 mm1.4 mm to 1.8 mmNot Rated450White100000000000000
    M10
    10.5 mm20.0 mm1.8 mm to 2.2 mmNot Rated450White1000000000000000
    M10
    10.5 mm22.0 mm2.4 mm to 2.7 mmNot Rated500White50000000000000
    M12
    13.0 mm24.0 mm2.4 mm to 2.7 mmNot Rated500White50000000000000
    M14
    15.0 mm30.0 mm2.7 mm to 3.3 mmNot Rated500White50000000000000
    M16
    17.0 mm30.0 mm2.7 mm to 3.3 mmNot Rated500White50000000000000
    M18
    19.0 mm34.0 mm2.7 mm to 3.3 mmNot Rated500White500000000000000
    M20
    21.0 mm37.0 mm2.7 mm to 3.3 mmNot Rated500White500000000000000
    M24
    25.0 mm44.0 mm1.4 mm to 1.8 mmNot Rated500White10000000000000
    M30
    31.0 mm56.0 mm1.4 mm to 1.8 mmNot Rated500White10000000000000
    M36
    37.0 mm66.0 mm1.4 mm to 1.8 mmNot Rated500White10000000000000
    M39
    40.0 mm72.0 mm1.4 mm to 1.8 mmNot Rated500White100000000000000
    M42
    43.0 mm78.0 mm1.4 mm to 1.8 mmNot Rated500White100000000000000
     

    Mil. Spec. Plastic Washers

    Image of Product. Front orientation. Washers. Mil. Spec. Plastic Washers.
    These washers are manufactured and tested to strict U.S. military standards for material and construction. They are lightweight, nonconductive, and naturally rust resistant. Commonly used in electronics and automation applications, they take the pressure off screws and nuts to protect mounting surfaces.
    Chemical-Resistant High-Temperature PTFE—The most chemical-resistant plastic washers we offer, these stand up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. Their slippery surface reduces friction between the washer, fastener, and mounting surface to prevent sticking when tightening and loosening. They are also good electrical insulators.
    Temp.
    Range
    For Screw
    Size
    ID
    OD
    Thk.
    Min.
    Max.,
    ° F
    Specs. Met
    Color
    Pkg.
    Qty.
    Pkg.
    Chemical-Resistant High-Temperature PTFE
    1/4"
    0.265"0.500"0.057" to 0.075"Not Rated500NAS1515-M4White500000000000000
    5/16"
    0.328"0.562"0.057" to 0.075"Not Rated500NAS1515-M5White50000000000000
    3/8"
    0.390"0.625"0.057" to 0.075"Not Rated500NAS1515-M6White500000000000000
    7/16"
    0.453"0.750"0.057" to 0.075"Not Rated500NAS1515-M7White500000000000000
    1/2"
    0.515"0.875"0.057" to 0.075"Not Rated500NAS1515-M8White500000000000000
    9/16"
    0.578"1.062"0.057" to 0.075"Not Rated500NAS1515-M9White500000000000000
    5/8"
    0.640"1.188"0.057" to 0.075"Not Rated500NAS1515-M10White500000000000000
    3/4"
    0.765"1.312"0.057" to 0.075"Not Rated500NAS1515-M12White500000000000000
    7/8"
    0.890"1.500"0.057" to 0.075"Not Rated500NAS1515-M14White500000000000000
    1"
    1.015"1.750"0.057" to 0.075"Not Rated500NAS1515-M16White500000000000000
     
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