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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High-Pressure Brass Threaded Pipe Fittings
These fittings have the strength to handle high-pressure applications. They are brass for good corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Water
Pipe Size | Drive Size | Max. Pressure | Each | |
NPT Male | ||||
|---|---|---|---|---|
| 1/16 | 5/32" | 1,000 psi @ 72° F | 000000000 | 00000 |
| 1/8 | 3/16" | 1,000 psi @ 72° F | 000000000 | 000 |
| 1/4 | 1/4" | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8 | 5/16" | 1,000 psi @ 72° F | 000000000 | 0000 |
| 1/2 | 3/8" | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/4 | 9/16" | 1,000 psi @ 72° F | 000000000 | 0000 |
NPTF Male | ||||
| 1 | 9/16" | 1,000 psi @ 72° F | 000000000 | 00000 |
High-Pressure Brass Threaded Pipe Fittings with Sealant
Not only do these fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Water
High-Pressure Brass Threaded Pipe Fittings for Drinking Water
Use these heavy duty fittings for high-pressure drinking water applications. They are brass which has good corrosion resistance. They meet NSF/ANSI 61 safety standards for use with drinking water systems.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
High-Pressure Plated Brass Threaded Pipe Fittings
The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications.
Nickel-plated brass fittings provide better corrosion resistance than unplated brass fittings. Black zinc-plated brass fittings have a shiny finish that offers better corrosion resistance than nickel-plated brass and stands up to salt spray applications. Chrome-plated brass fittings have a mirror-like finish and provide better corrosion resistance than nickel- and black zinc-plated brass.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
and Metric Male
Threads with O-Ring
- For Use With: Air, Natural Gas, Oil, Water
| Pipe Size | Thread Size | Lg. | Max. Pressure | O-Ring Material | Each | |
Nickel-Plated Brass | ||||||
|---|---|---|---|---|---|---|
NPTF Male | ||||||
| 1/8 | __ | 19/64" | 1,000 psi @ 72° F | __ | 0000000 | 00000 |
| 1/4 | __ | 15/32" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 3/8 | __ | 29/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 1/2 | __ | 35/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
BSPP Male | ||||||
| 1/8 | __ | 5/16" | 2,170 psi @ 72° F | __ | 00000000 | 0000 |
| 1/8 | __ | 5/16" | 2,170 psi @ 72° F | Buna-N Rubber | 00000000 | 0000 |
| 1/8 | __ | 5/16" | 2,170 psi @ 72° F | Fluoroelastomer Rubber | 00000000 | 0000 |
| 1/4 | __ | 7/16" | 1,450 psi @ 72° F | __ | 00000000 | 0000 |
| 1/4 | __ | 7/16" | 1,450 psi @ 72° F | Buna-N Rubber | 00000000 | 0000 |
| 1/4 | __ | 7/16" | 1,450 psi @ 72° F | Fluoroelastomer Rubber | 00000000 | 0000 |
| 3/8 | __ | 1/2" | 1,080 psi @ 72° F | __ | 00000000 | 0000 |
| 3/8 | __ | 1/2" | 1,080 psi @ 72° F | Buna-N Rubber | 00000000 | 0000 |
| 3/8 | __ | 1/2" | 1,080 psi @ 72° F | Fluoroelastomer Rubber | 00000000 | 0000 |
| 1/2 | __ | 9/16" | 725 psi @ 72° F | __ | 00000000 | 0000 |
| 1/2 | __ | 9/16" | 725 psi @ 72° F | Buna-N Rubber | 00000000 | 0000 |
| 1/2 | __ | 9/16" | 725 psi @ 72° F | Fluoroelastomer Rubber | 00000000 | 0000 |
| 3/4 | __ | 9/16" | 1,230 psi @ 72° F | __ | 00000000 | 0000 |
| 3/4 | __ | 5/8" | 1,230 psi @ 72° F | Buna-N Rubber | 00000000 | 00000 |
| 1 | __ | 5/8" | 1,160 psi @ 72° F | Buna-N Rubber | 00000000 | 00000 |
BSPT Male | ||||||
| 1/8 | __ | 5/16" | 2,170 psi @ 72° F | __ | 00000000 | 0000 |
| 1/4 | __ | 3/8" | 1,450 psi @ 72° F | __ | 00000000 | 0000 |
| 3/8 | __ | 7/16" | 1,080 psi @ 72° F | __ | 00000000 | 0000 |
| 1/2 | __ | 1/2" | 725 psi @ 72° F | __ | 00000000 | 0000 |
Metric Male | ||||||
| __ | M12 × 1.25 mm | 7/16" | 1,080 psi @ 72° F | Buna-N Rubber | 00000000 | 0000 |
Black Zinc-Plated Brass | ||||||
NPTF Male | ||||||
| 1/8 | __ | 19/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 1/4 | __ | 15/32" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 3/8 | __ | 29/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 1/2 | __ | 35/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
Chrome-Plated Brass | ||||||
NPTF Male | ||||||
| 1/8 | __ | 19/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 1/4 | __ | 29/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 3/8 | __ | 29/64" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
| 1/2 | __ | 19/32" | 1,000 psi @ 72° F | __ | 0000000 | 0000 |
Low-Pressure Plated Brass Threaded Pipe Fittings
Used in low-pressure pipe lines, these brass fittings have a plating that makes them shiny and improves corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Hydraulic Fluid, Oil
| Thread Size | Plug Construction | Max. Pressure | Each | |
Metric Male | ||||
|---|---|---|---|---|
Nickel-Plated Brass—Buna-N Rubber O-Ring | ||||
| M5 × 0.8 mm | Solid | 2,100 psi @ 72° F | 0000000 | 00000 |
| M8 × 1 mm | Solid | 1,000 psi @ 72° F | 0000000 | 0000 |
| M10 × 1 mm | Solid | 2,100 psi @ 72° F | 0000000 | 0000 |
Nickel-Plated Brass—Viton® Fluoroelastomer Rubber O-Ring | ||||
| M5 × 0.8 mm | Solid | 2,100 psi @ 72° F | 0000000 | 0000 |
Universal-Thread Plated Brass Pipe Fittings
When you're unsure of the exact thread type you need, these fittings have universal threads that are compatible with the most common ones (NPT, NPTF, BSPP, BSPT). Made of nickel-plated brass, they resist corrosion better than plain brass fittings. A reusable Buna-N O-ring protects against leaks.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Oil, Water
- Fabrication: Machined
| Pipe Size | Max. Pressure | Hex Wd. | Material | O-Ring Material | Each | |
Universal, NPT, NPTF, BSPP, BSPT Male Threads | ||||||
|---|---|---|---|---|---|---|
| 1/8 | 2,100 psi @ 72° F | 3/16" | Nickel-Plated Brass | Buna-N Rubber | 0000000 | 00000 |
| 1/4 | 1,400 psi @ 72° F | 15/64" | Nickel-Plated Brass | Buna-N Rubber | 0000000 | 0000 |
| 3/8 | 1,000 psi @ 72° F | 5/16" | Nickel-Plated Brass | Buna-N Rubber | 0000000 | 0000 |
| 1/2 | 700 psi @ 72° F | 7/16" | Nickel-Plated Brass | Buna-N Rubber | 0000000 | 0000 |
Extreme-Pressure Brass Threaded Pipe Fittings
Extreme pressures are no problem for these heavy-duty fittings. They are brass for good corrosion resistance.
Nickel-plated brass fittings have better corrosion resistance than plain brass fittings. BSPP male threads have a gasket and washer to protect against leaks.
For technical drawings and 3-D models, click on a part number.
Threads with
Gasket and Washer
- For Use With: Air, Water
- Specifications Met:
BSPP: ISO 7.1, ISO 228
BSPT: DIN 906, ISO 7.1, ISO 228
| Pipe Size | Drive Size | Max. Pressure | Material | Each | |
BSPP Male | |||||
|---|---|---|---|---|---|
| 1/8 | 5 mm | 2,900 psi @ 72° F | Nickel-Plated Brass | 00000000 | 00000 |
| 1/4 | 6 mm | 2,100 psi @ 72° F | Nickel-Plated Brass | 00000000 | 0000 |
| 3/8 | 8 mm | 1,400 psi @ 72° F | Nickel-Plated Brass | 00000000 | 0000 |
| 1/2 | 10 mm | 1,400 psi @ 72° F | Nickel-Plated Brass | 00000000 | 00000 |
BSPT Male | |||||
| 1/8 | 5 mm | 2,900 psi @ 72° F | Nickel-Plated Brass | 00000000 | 0000 |
| 1/4 | 6 mm | 2,100 psi @ 72° F | Nickel-Plated Brass | 00000000 | 0000 |
| 3/8 | 8 mm | 1,400 psi @ 72° F | Nickel-Plated Brass | 00000000 | 0000 |
| 1/2 | 10 mm | 1,400 psi @ 72° F | Nickel-Plated Brass | 00000000 | 0000 |
| 3/4 | 12 mm | 1,700 psi @ 72° F | Brass | 00000000 | 00000 |
Precision Extreme-Pressure Brass Threaded Pipe Fittings
Also known as instrumentation fittings, these have the most precise threads and the tightest tolerances of all the brass pipe fittings we offer. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
- Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3
Build-Your-Own Air Hose System
| Connection | Drive Style | Max. Pressure | Material | Each | |
| 3/8 Threaded NPT Male Pipe | Hex | 150 psi @ 72° F | Brass | 0000000 | 00000 |
Self-Draining Breather Vents
Minimize moisture buildup in enclosures. Also known as drain plugs, these breather vents have a small outlet that allows condensation to drain. They have a silicone O-ring above the threads for a tight seal. Install them at the lowest point of the enclosure. Breather vents meet IP66 for protection in washdown environments. Use them to prevent excess vacuum and pressure in cylinders, gear boxes, and tanks and to block debris from entering equipment.
Brass breather vents have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.