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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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Compact Extreme-Pressure Steel Threaded Pipe Fittings
These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are galvanized and zinc-plated steel, which have better corrosion resistance than plain steel fittings. BSPP and metric male threads have either a gasket, or a gasket and washer, to prevent leaks.
For technical drawings and 3-D models, click on a part number.
Straight Connectors, Female
- For Use With:
NPTF: Air, Hydraulic Fluid, Water
Metric: Air, Hydraulic Fluid, Oil, Water - Specifications Met:
NPTF: ASTM A108
Metric: DIN 7631, ISO 6149, ISO 9974
| Thread Size | Max. Pressure | Material | Each | |
Metric Female | ||||
|---|---|---|---|---|
| M12 × 1.5 mm | 4,500 psi @ 72° F | Galvanized Steel | 00000000 | 000000 |
| M14 × 1.5 mm | 4,500 psi @ 72° F | Galvanized Steel | 00000000 | 00000 |
| M16 × 1.5 mm | 4,000 psi @ 72° F | Galvanized Steel | 00000000 | 00000 |
| M18 × 1.5 mm | 4,000 psi @ 72° F | Galvanized Steel | 00000000 | 00000 |
| M20 × 1.5 mm | 3,500 psi @ 72° F | Galvanized Steel | 00000000 | 00000 |
| M22 × 1.5 mm | 3,500 psi @ 72° F | Galvanized Steel | 00000000 | 00000 |
Straight Adapters, Female × Male
BSPP and Metric
Male Threads with
Gasket and Washer
Male Threads with
Gasket and Washer
- For Use With: See table
- Specifications Met: See table
| Pipe Size (A)  | Thread Size (A) | Dash Size (A) | Pipe Size (B) | Thread Size (B) | Dash Size (B) | Max. Pressure | Material | For Use With | Specifications Met | Each | |
NPT Female × Metric Male | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | __ | 02 | __ | M6 × 0.75 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 000000 |
| 1/8 | __ | 02 | __ | M6 × 1 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/8 | __ | 02 | __ | M8 × 1 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/8 | __ | 02 | __ | M10 × 1 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/8 | __ | 02 | __ | M10 × 1.5 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/8 | __ | 02 | __ | M12 × 1.5 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/4 | __ | 04 | __ | M10 × 1 mm | __ | 4,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/4 | __ | 04 | __ | M10 × 1.5 mm | __ | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/4 | __ | 04 | __ | M12 × 1 mm | __ | 4,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/2 | __ | 08 | __ | M16 × 1.5 mm | __ | 3,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1/2 | __ | 08 | __ | M20 × 1.5 mm | __ | 3,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 3/4 | __ | 12 | __ | M26 × 1.5 mm | __ | 3,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 3/4 | __ | 12 | __ | M27 × 2 mm | __ | 3,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| 1 | __ | 16 | __ | M33 × 2 mm | __ | 2,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
Metric Female × NPT Male | |||||||||||
| __ | M8 × 1 mm | __ | 1/8 | __ | 02 | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M10 × 1 mm | __ | 1/8 | __ | 02 | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M10 × 1.5 mm | __ | 1/8 | __ | 02 | 5,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M12 × 1.5 mm | __ | 1/4 | __ | 04 | 6,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M14 × 1.5 mm | __ | 1/4 | __ | 04 | 6,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M14 × 1.5 mm | __ | 3/8 | __ | 06 | 5,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M16 × 1.5 mm | __ | 1/4 | __ | 04 | 6,000 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M16 × 1.5 mm | __ | 3/8 | __ | 06 | 5,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M18 × 1.5 mm | __ | 3/8 | __ | 06 | 5,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M18 × 1.5 mm | __ | 1/2 | __ | 08 | 4,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M20 × 1.5 mm | __ | 1/2 | __ | 08 | 4,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M22 × 1.5 mm | __ | 1/2 | __ | 08 | 4,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| __ | M26 × 1.5 mm | __ | 3/4 | __ | 12 | 3,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
Straight Adapters, Male
BSPP, Metric, and UN/UNF
(SAE Straight) Male Threads
with Gasket and Washer
(SAE Straight) Male Threads
with Gasket and Washer
- For Use With: See table
- Specifications Met: See table
| Pipe Size (A) | Dash Size (A) | Thread Size (B) | Max. Pressure | Material | For Use With | Specifications Met | Each | |
BSPP Male × Metric Male | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | 02 | M10 × 1 mm | 5,000 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 000000 |
| 1/4 | 04 | M10 × 1.5 mm | 6,000 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 1/4 | 04 | M12 × 1.5 mm | 6,000 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 1/4 | 04 | M14 × 1.5 mm | 6,000 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 3/8 | 06 | M12 × 1.5 mm | 5,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 3/8 | 06 | M14 × 1.5 mm | 5,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 3/8 | 06 | M16 × 1.5 mm | 5,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 3/8 | 06 | M20 × 1.5 mm | 4,500 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 0000000 | 00000 |
| 1/2 | 08 | M18 × 1.5 mm | 4,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 1/2 | 08 | M20 × 1.5 mm | 4,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 1/2 | 08 | M22 × 1.5 mm | 4,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 5/8 | __ | M22 × 1.5 mm | 4,000 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 3/4 | 12 | M24 × 1.5 mm | 3,500 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
| 1 | 16 | M36 × 1.5 mm | 3,000 psi @ 72° F | Galvanized Steel | Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 1179, ISO 6149, ISO 8434-6, ISO 9974 | 00000000 | 00000 |
Straight Reducers, Female
- For Use With:
NPTF: Air, Hydraulic Fluid, Water
Metric: Air, Hydraulic Fluid, Oil, Water - Specifications Met:
NPTF: ASTM A108
Metric: DIN 7631, ISO 6149, ISO 9974
Plugs with External Hex Drive
BSPP and Metric
Male Threads with
Gasket and Washer
Male Threads with
Gasket and Washer
- For Use With: See table
- Specifications Met: See table
| Thread Size | Plug Construction | Max. Pressure | Material | For Use With | Specifications Met | Each | |
Metric Male | |||||||
|---|---|---|---|---|---|---|---|
| M10 × 1 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| M12 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 0000 |
| M14 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 0000 |
| M16 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 0000 |
| M18 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 0000 |
| M20 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| M22 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| M24 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| M26 × 1.5 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
| M30 × 2 mm | Solid | 5,600 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | DIN 7631, ISO 6149, ISO 9974 | 00000000 | 00000 |
Replacement Washers
- Temperature Range: -20° to 230° F
| For Pipe Size | For Thread Size | Gasket Material | Thickness | Each | |
For BSPP Male | |||||
|---|---|---|---|---|---|
| 1/8 | __ | Buna-N Rubber | 2mm | 00000000 | 00000 |
| 1/4 | __ | Buna-N Rubber | 2.03mm | 00000000 | 000 |
| 3/8 | __ | Buna-N Rubber | 2mm | 00000000 | 000 |
| 1/2 | __ | Buna-N Rubber | 2.5mm | 00000000 | 0000 |
| 5/8 | __ | Buna-N Rubber | 2.5mm | 00000000 | 0000 |
| 3/4 | __ | Buna-N Rubber | 2.5mm | 00000000 | 0000 |
| 1 | __ | Buna-N Rubber | 3.2mm | 00000000 | 0000 |
For Metric Male | |||||
| __ | M6 | Buna-N Rubber | 1mm | 00000000 | 0000 |
| __ | M8 | Buna-N Rubber | 1mm | 00000000 | 0000 |
| __ | M10 | Buna-N Rubber | 2mm | 00000000 | 000 |
| __ | M12 | Buna-N Rubber | 1.5mm | 00000000 | 0000 |
| __ | M14 | Buna-N Rubber | 1.5mm | 00000000 | 0000 |
| __ | M16 | Buna-N Rubber | 1.5mm | 00000000 | 0000 |
| __ | M18 | Buna-N Rubber | 1.5mm | 00000000 | 0000 |
| __ | M20 | Buna-N Rubber | 1.5mm | 00000000 | 0000 |
| __ | M22 | Buna-N Rubber | 2mm | 00000000 | 0000 |
| __ | M24 | Buna-N Rubber | 2mm | 00000000 | 0000 |
| __ | M26 | Buna-N Rubber | 2.5mm | 00000000 | 0000 |
| __ | M27 | Buna-N Rubber | 2mm | 00000000 | 0000 |
| __ | M30 | Buna-N Rubber | 2mm | 00000000 | 0000 |
| __ | M33 | Buna-N Rubber | 2mm | 00000000 | 0000 |