How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Pipe Bushings for Shaft Collars
Sized specifically to adapt standard shaft collars to pipe, these bushings create a tight fit. They're nylon, so they won't break if your pipe expands or contracts.
One-flange bushings can be installed when a shaft collar is already loosely assembled around the pipe. Because there is only one flange, the collar could slip off over time.
Two-flange bushings prevent shaft collars from sliding off even in high-vibration environments. You’ll need to disassemble your shaft collar to install it around these bushings.
For technical drawings and 3-D models, click on a part number.
Sleeve | |||||||
|---|---|---|---|---|---|---|---|
Pipe Size | ID | Overall Length | OD | Length | Flange OD | Each | |
Nylon Plastic | |||||||
One Flange | |||||||
| 3/8 | 0.690" | 9/16" | 1" | 1/2" | 1 1/8" | 0000000 | 000000 |
| 1/2 | 0.857" | 9/16" | 1 1/8" | 1/2" | 1 1/4" | 0000000 | 00000 |
| 3/4 | 1.065" | 9/16" | 1 1/4" | 1/2" | 1 3/8" | 0000000 | 00000 |
| 1 | 1.330" | 5/8" | 1 1/2" | 9/16" | 1 5/8" | 0000000 | 00000 |
| 1 1/4 | 1.675" | 3/4" | 1 13/16" | 11/16" | 2 1/16" | 0000000 | 00000 |
| 1 1/2 | 1.915" | 13/16" | 2 1/8" | 3/4" | 2 1/4" | 0000000 | 00000 |
Two Flanges | |||||||
| 3/8 | 0.690" | 5/8" | 1" | 1/2" | 1 1/8" | 0000000 | 00000 |
| 1/2 | 0.857" | 5/8" | 1 1/8" | 1/2" | 1 1/4" | 0000000 | 00000 |
| 3/4 | 1.065" | 5/8" | 1 1/4" | 1/2" | 1 3/8" | 0000000 | 00000 |
| 1 | 1.330" | 11/16" | 1 1/2" | 9/16" | 1 5/8" | 0000000 | 00000 |
| 1 1/4 | 1.675" | 13/16" | 1 13/16" | 11/16" | 2 1/16" | 0000000 | 00000 |
| 1 1/2 | 1.915" | 7/8" | 2 1/8" | 3/4" | 2 1/4" | 0000000 | 00000 |
Standard-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 40 plastic pipe–they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.
To prevent leaks in threaded connections, apply a sealant to the male threads. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. Fittings that meet ASTM D1784, ASTM D1785, and ASTM D4066 adhere to specifications and testing requirements for material quality.
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With:
PVC Plastic Fittings: Drinking Water, Water
Nylon Fittings: Water - Maximum Temperature:
PVC Plastic Fittings: 140° F
Nylon Fittings: 180° F - Specifications Met:
PVC Plastic Fittings: ASTM D1784, NSF/ANSI 61
Nylon Plastic Fittings: ASTM D4066 - Flanges: See table
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
| Pipe Size (A) | Pipe Size (B) | Material | Color | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 3/8 | 1/4 | Nylon Plastic | Red | 0000000 | 00000 |
| 1/2 | 3/8 | Nylon Plastic | Red | 0000000 | 0000 |
| 3/4 | 1/2 | Nylon Plastic | Red | 0000000 | 0000 |
| 1 | 3/4 | Nylon Plastic | Red | 0000000 | 0000 |
| 1 1/4 | 1 | Nylon Plastic | Red | 0000000 | 0000 |
| 1 1/2 | 1 1/4 | Nylon Plastic | Red | 0000000 | 0000 |
| 2 | 1 1/2 | Nylon Plastic | Red | 0000000 | 0000 |
| 2 1/2 | 2 | Nylon Plastic | Red | 0000000 | 00000 |
Plastic Pipe Fittings for Gasoline
Use these plastic fittings to connect gasoline fuel lines to machines and equipment. They have excellent corrosion resistance as well as high strength and impact resistance. Apply a non-hardening, plastic-compatible sealant to the male threads to prevent leaks. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.
- For Use With: Gasoline
- Temperature Range: 32° to 160° F
| Pipe Size (A) | Pipe Size (B) | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 1/4 | 1/8 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 1/8 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 3/8 | 1/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1/2 | 1/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1/2 | 3/8 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 3/4 | 1/8 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 3/4 | 1/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 3/4 | 3/8 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 3/4 | 1/2 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 | 1/2 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 | 3/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 1/4 | 3/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 1/4 | 1 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 1/2 | 3/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 1/2 | 1 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 1 1/2 | 1 1/4 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 2 | 1 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 00000 |
| 2 | 1 1/2 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| 3 | 2 | Nylon Plastic | White | 70 psi @ 72° F | 000000000 | 0000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |
Plastic Pipe Fittings for Oil
Made of corrosion-resistant plastic, these fittings won’t deteriorate when used in oil applications. They also have high strength and impact resistance. Apply a non-hardening, plastic-compatible sealant to the male threads to prevent leaks. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Oil
- Temperature Range: 0° to 230° F
Pipe Size | ||||||
|---|---|---|---|---|---|---|
| A | B | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
| 1/8 | 1/4 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 00000 |
| 1/8 | 3/8 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 1/8 | 1/2 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 1/4 | 3/8 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 1/4 | 1/2 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 1/4 | 3/4 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 3/8 | 1/2 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 3/8 | 3/4 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |
| 1/2 | 3/4 | Nylon Plastic | Gray | 200 psi @ 72° F | 00000000 | 0000 |