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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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Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings
Made to tighter tolerances than other stainless steel pipe fittings, these are also known as instrumentation fittings. The male threads are rolled for extra strength in extreme-pressure applications. Fittings are commonly used to connect equipment in gas and hydraulic fluid lines. They are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Straight Connectors, Male
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3
316 Stainless Steel | |||||
|---|---|---|---|---|---|
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | |||||
| 1/16 | __ | 10,000 psi @ 72° F | 10,000 psi @ 300° F | 000000000 | 000000 |
| 1/8 | 02 | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 00000000 | 0000 |
| 1/4 | 04 | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 0000 |
| 3/8 | 06 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 08 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
Straight Connectors with Hex, Male
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3
316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| Pipe Size | Dash Size | Lg. | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | ||||||
| 1/16 | __ | 1 1/16" | 10,000 psi @ 72° F | 10,000 psi @ 300° F | 000000000 | 000000 |
| 1/16 | __ | 2" | 10,000 psi @ 72° F | 10,000 psi @ 300° F | 000000000 | 00000 |
| 1/16 | __ | 2 1/2" | 10,000 psi @ 72° F | 10,000 psi @ 300° F | 000000000 | 00000 |
| 1/16 | __ | 3" | 10,000 psi @ 72° F | 10,000 psi @ 300° F | 000000000 | 00000 |
| 1/16 | __ | 4" | 10,000 psi @ 72° F | 10,000 psi @ 300° F | 000000000 | 00000 |
| 1/8 | 02 | 1 1/16" | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 00000000 | 0000 |
| 1/8 | 02 | 2" | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 000000000 | 00000 |
| 1/8 | 02 | 2 1/2" | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 000000000 | 00000 |
| 1/8 | 02 | 3" | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 000000000 | 00000 |
| 1/8 | 02 | 4" | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 000000000 | 00000 |
| 1/4 | 04 | 1 7/16" | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 0000 |
| 1/4 | 04 | 2" | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 00000 |
| 1/4 | 04 | 2 1/2" | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 00000 |
| 1/4 | 04 | 3" | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 00000 |
| 1/4 | 04 | 4" | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 00000 |
| 3/8 | 06 | 1 7/16" | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 06 | 2" | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 06 | 2 1/2" | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 06 | 3" | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 06 | 4" | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 08 | 1 7/8" | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 08 | 2" | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 08 | 2 1/2" | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 08 | 3" | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 08 | 4" | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 12 | 1 27/32" | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 12 | 2" | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 12 | 3" | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 12 | 4" | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 16 | 2 5/16" | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 16 | 3" | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 16 | 4" | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
Straight Adapters, Male
Straight Adapter, Male Threaded Pipe
- For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water - Specifications Met:
NPT × BSPP: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3, ISO 228.1, ISO BS 2779
NPT × BSPT: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3, ISO 7.1, ISO BS2.1
| Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male × BSPT Male | |||||
|---|---|---|---|---|---|
| 1/8 | 02 | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 0000000 | 00000 |
| 1/4 | 04 | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 0000000 | 00000 |
| 3/8 | 06 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 0000000 | 00000 |
| 1/2 | 08 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 0000000 | 00000 |
| 3/4 | 12 | 6,400 psi @ 72° F | 6,400 psi @ 300° F | 0000000 | 00000 |
| 1 | 16 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 0000000 | 00000 |
Straight Reducers, Male
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B31.1, ANSI/ASME B31.3
Pipe Size | Dash Size | 316 Stainless Steel | |||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | |||||||
| 1/8 | 1/16 | 02 | __ | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 000000000 | 00000 |
| 1/4 | 1/8 | 04 | 02 | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 0000 |
| 3/8 | 1/8 | 06 | 02 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 00000000 | 00000 |
| 3/8 | 1/4 | 06 | 04 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 1/8 | 08 | 02 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 00000000 | 00000 |
| 1/2 | 1/4 | 08 | 04 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 3/8 | 08 | 06 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 1/4 | 12 | 04 | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 1/2 | 12 | 08 | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 1/2 | 16 | 08 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 3/4 | 16 | 12 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)