Blue O-Rings | McMaster-Carr

Filter by

Color

Material

Cross Section Shape

Dash Number

System of Measurement

ID

Width

OD

Hardness

Minimum Temperature

For Use With

Maximum Temperature

Seal ID

Hardness Rating

Seal OD

Fractional Width

Fractional ID

Military Specification

USMCA Qualifying

Fractional OD

Specifications Met

REACH Compliance

Food Industry Standard

How can we improve?

358 Products

Sealing

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

Head Seals

Maintain a seal even under fluctuating pressure; more reliable than an O-ring with a backup ring

Piston Seals

Prevent leaks inside pistons by creating a seal against the cylinder bore

Fastening and Joining

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Power Transmission

Round Belts

Flexible to send rotary power between unparallel shafts

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)