1 31/64" Long Pipe Nipples and Pipe

Fittings that meet ANSI/MSS SP-114 adhere to high-quality standards for heat treating, material thickness, and marking. 304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

Union connectors separate into three pieces so you can access your line without unthreading pipe connections.

For technical drawings and 3-D models, click on a part number.

Union Straight Connectors

Exploded View

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Fabrication: Heat Treated
Specifications Met:
NPT: ANSI/MSS SP-114, ASTM A351
BSPP and BSPT: ASNI/MSS SP-114
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Flanges: Use Class 150 stainless steel

			304 Stainless Steel		316 Stainless Steel
Pipe Size	Max. Steam Pressure	Max. Pressure		Each		Each
NPT Female
1/4	150 psi @ 350° F	300 psi @ 72° F	00000000	000000	00000000	000000

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.

BSPP male threads have a gasket and washer to prevent leaks.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female × Male

For Use With:
NPT × BSPP: Natural Gas, Water
All others: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
NPT × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
BSPP × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
BSPT × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1

NPT Female × BSPT Male
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	0000000	000000
BSPP Female × NPT Male
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	0000000	00000
BSPT Female × NPT Male
3/8	06	5,000 psi @ 72° F	5,000 psi @ 300° F	0000000	00000

Straight Adapters, Male

Straight Adapter, Male Threaded Pipe

BSPP Male
Threads with
Gasket and Washer

For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT and UN/UNF (SAE Straight) Male × NPT Male: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
UN/UNF (SAE Straight) Male × NPT Male: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479, SAE J1926

NPT Male × BSPP Male
Pipe Size (A)	Pipe Size (B)	Max. Pressure		Each
3/8	3/8	4,400 psi @ 72° F	00000000	000000

Extreme-Pressure Stainless Steel Threaded Pipe Fittings

With the strength to handle extreme pressures, these fittings can be used to connect equipment in hydraulic fluid lines. 316 stainless steel fittings have excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Straight Connectors, Male

Specifications Met: See table
For Use With: See table

					316 Stainless Steel
Pipe Size	Dash Size	Lg.	Max. Pressure	For Use With		Each
NPT Male
1/4	04	1 31/64"	15,000 psi @ 72° F	Hydraulic Fluid, Oil, Water	000000000	000000

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.

Chrome-plated brass fittings are shinier and withstand corrosion better than nickel-plated brass fittings.

For technical drawings and 3-D models, click on a part number.

Straight Reducers

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 125
Specifications Met: ASME B16.15, ASTM B456
Pipe Nipples and Pipe: Use Schedule 40 brass

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Female
Chrome-Plated Brass
1	1/2	200 psi @ 72° F	125 psi @ 400° F	00000000	000000

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.

Straight Adapters, Female × Male

For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
Specifications Met: See table

BSPP Female × NPT Male
Pipe Size	Max. Pressure	Max. Steam Pressure	Specifications Met		Each
3/8	2,600 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	000000
BSPT Female × NPT Male
3/8	2,600 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.1, ASME B31.3	00000000	00000

Standard-Wall Steel Threaded Pipe Nipples and Pipe

Also known as Schedule 40, this pipe is designed for low-pressure applications. Use in noncorrosive applications.

Welded pipe has a weld bead on the inside.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

For technical drawings and 3-D models, click on a part number.

BSPT × NPT Fully Threaded

For Use With: Air, Steam, Oil, Water, Natural Gas
Specifications Met: ASME B1.20.1, DIN EN 10226, ANSI/ASME BS21
Fittings: Use Class 150 Iron and Steel

Pipe Size	Lg.	Construction	Material		Each
1	1 31/64"	Welded	Steel	00000000	000000

Standard-Wall Galvanized Steel Threaded Pipe Nipples and Pipe

Made of galvanized steel, this Schedule 40 pipe has fair corrosion resistance and is designed for low-pressure applications.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

For technical drawings and 3-D models, click on a part number.

BSPT × NPT Fully Threaded

For Use With: Air, Steam, Oil, Water, Natural Gas
Pressure Class: 150
Specifications Met: ANSI/ASME BS21, DIN EN 10226, ASME B1.20.1
Fittings: Use Class 150 galvanized iron and galvanized steel
Flanges: Use Class 150 galvanized steel

Pipe Size	Lg.	Construction		Each
1	1 31/64"	Welded	00000000	000000

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 Reducing Adapters, Male

BSPP Male
Threads with
Gasket and Washer

For Use With: Air, Hydraulic Fluid, Oil, Water
Specifications Met:
BSPP × NPT: ASME B1.20.3, ISO 1179, ISO 8434-6
BSPT × NPT: ASME B1.20.3, DIN EN 10226-1, ISO 7-1

	Pipe Size		Dash Size
For Use With	(A)	(B)	(A)	(B)	Max. Pressure		Each
BSPP Male × NPT Male
Air, Hydraulic Fluid, Oil, Water	1/2	1/4	08	04	4,500 psi @ 72° F	00000000	000000
Air, Hydraulic Fluid, Oil, Water	1/2	3/8	08	06	4,500 psi @ 72° F	00000000	0000

Replacement Washers

Temperature Range: -20° to 230° F

For BSPP Male
For Pipe Size	Gasket Material	Thickness		Each
1/2	Buna-N Rubber	2.5mm	00000000	00000