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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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Miniature Medium-Pressure Stainless Steel Threaded Pipe Fittings
When space is at a premium choose these compact fittings. Though small in size, they have the strength to handle medium-pressure applications. Fittings are stainless steel for very good corrosion resistance.
Metric, BSPP, and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. Made from fluoroelastomer, these gaskets resist chemicals, including benzene, butyl alcohol, and ethylene glycol. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
Plugs with External Hex Drive
BSPP, Metric, and
UN/UNF (SAE Straight)
Male Threads with Gasket
UN/UNF (SAE Straight)
Male Threads with Gasket
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM A314, ASTM A320, ASTM A582
Pipe Size | Drive Size | Max. Pressure | Max. Steam Pressure | Gasket Material | Each | |
303 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
NPT Male | ||||||
| 1/16 | 5/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
BSPP Male | ||||||
| 1/16 | 1/2" | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
| 1/8 | 5/8" | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
| 1/4 | 3/4" | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
BSPT Male | ||||||
| 1/16 | 5/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 0000 |
| 1/8 | 7/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
| 1/4 | 9/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
316 Stainless Steel | ||||||
NPT Male | ||||||
| 1/16 | 5/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
BSPP Male | ||||||
| 1/16 | 1/2" | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
| 1/8 | 5/8" | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
| 1/4 | 3/4" | 500 psi @ 72° F | 100 psi @ 350° F | Fluoroelastomer Rubber | 00000000 | 00000 |
BSPT Male | ||||||
| 1/16 | 5/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
| 1/8 | 7/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |
| 1/4 | 9/16" | 500 psi @ 72° F | 100 psi @ 350° F | __ | 00000000 | 00000 |