Stainless Steel Pipe Threaded-One-End Nipples

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Fitting Material

304 Stainless Steel

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Fitting Connection

Shape

Gender

Flange Material

For Fitting Schedule

For Use With

Connects To

Pipe Material

Construction

Specifications Met

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Exempt

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323 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Fitting Type

Pipe

Pair with fittings to transfer water, air, and other materials

273 products

Reducing Adapter

Join pipe of different sizes and fitting connections

33 products

Fitting Type

Reducer

Transition between pipe of different sizes

33 products

Performance

Chemical Resistant

Stay strong when exposed to acids, bases, and other harsh chemicals

277 products

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Designed for low-pressure flow applications, this pipe is also known as Schedule 40.

Pipe Adapters—Threaded on One End

Male × Butt Weld

304/304L Stainless Steel—Pipe holds up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

316/316L Stainless Steel—Pipe is the most corrosion resistant. It stands up to wet environments, just like 304 stainless steel pipe, but unlike 304 stainless steel, it will not corrode from salt water, chlorine solutions, and chemicals.

Seamless—Pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.

Welded—Pipe has a weld bead on the inside.

				304/304L Stainless Steel		316/316L Stainless Steel
	Lg.	Construction	Pipe Schedule		Each		Each
NPT Male × Butt Weld/Socket Connect Male







				1/8 Pipe Size

				1"	Seamless	40	9157K14	00000	———	0


				1 1/2"	Seamless	40	9157K28	0000	———	0
				2"	Seamless	40	9157K39	0000	———	0
				2 1/2"	Seamless	40	9157K61	0000	———	0
				3"	Seamless	40	9157K49	0000	———	0
				3 1/2"	Seamless	40	9157K7	0000	9110T15	00000
				4"	Seamless	40	9157K59	0000	———	0
				4 1/2"	Seamless	40	———	0	9110T16	0000
				5"	Seamless	40	9157K702	0000	———	0
				6"	Seamless	40	9157K91	0000	———	0
				8"	Seamless	40	9157K704	00000	9110T19	00000


				10"	Seamless	40	9157K705	00000	9110T28	00000
				12"	Seamless	40	9157K706	00000	9110T29	00000




						1/4 Pipe Size

						1"	Seamless	40	9157K11	0000	9110T11	0000


						1 1/2"	Seamless	40	9157K21	0000	9110T21	0000
						2"	Seamless	40	9157K31	0000	9110T31	0000
						2 1/2"	Seamless	40	9157K62	0000	9110T41	0000
						3"	Seamless	40	9157K41	0000	9110T51	0000
						3 1/2"	Seamless	40	9157K71	0000	9110T39	0000
						4"	Seamless	40	9157K51	0000	9110T61	0000
						4 1/2"	Seamless	40	9157K711	0000	———	0
						5"	Seamless	40	9157K712	0000	9110T87	00000
						5 1/2"	Seamless	40	9157K713	0000	———	0
						6"	Seamless	40	9157K92	0000	9110T71	00000


						8"	Seamless	40	9157K714	00000	9110T891	00000
						10"	Seamless	40	9157K715	00000	9110T892	00000
						12"	Seamless	40	9157K716	00000	9110T893	00000




								3/8 Pipe Size

								1"	Seamless	40	9157K12	0000	9110T12	0000


								1 1/2"	Seamless	40	9157K22	0000	9110T22	0000
								2"	Seamless	40	9157K32	0000	9110T32	0000
								2 1/2"	Seamless	40	9157K63	0000	9110T42	0000
								3"	Seamless	40	9157K42	0000	9110T52	0000
								3 1/2"	Seamless	40	9157K72	0000	———	0
4"								Seamless	40	9157K52	0000	9110T62	00000
4 1/2"	Seamless							40	9157K721	0000	9110T895	00000
5"	Seamless							40	9157K722	0000	9110T896	00000
5 1/2"	Seamless							40	9157K723	00000	———	0
6"	Seamless							40	9157K93	00000	9110T72	00000


8"	Seamless	40	9157K724					00000	9110T898	00000
10"	Seamless	40	9157K725					00000	9110T899	00000
12"	Seamless	40	9157K726					00000	9110T911	00000




		1/2 Pipe Size

		1"	Welded					40	9157K13	0000	9110T13	0000


		1 1/2"	Welded					40	9157K23	0000	9110T23	0000
		2"	Welded					40	9157K33	0000	9110T33	0000
		2 1/2"	Welded					40	9157K64	0000	9110T43	0000
		3"	Welded					40	9157K43	0000	9110T53	0000
		3 1/2"	Welded					40	9157K73	0000	9110T912	00000
		4"	Welded					40	9157K53	0000	9110T63	00000
		4 1/2"	Welded					40	9157K731	0000	9110T913	00000
		5"	Welded					40	9157K732	00000	9110T914	00000
		5 1/2"	Welded					40	9157K733	00000	9110T915	00000
		6"	Welded					40	9157K94	00000	9110T73	00000


		8"	Welded	40	9157K734			00000	9110T916	00000
		10"	Welded	40	9157K735			00000	9110T917	00000
		12"	Welded	40	9157K736			00000	9110T918	00000




				3/4 Pipe Size

				1"	Welded			40	9157K15	0000	9110T14	0000


				1 1/2"	Welded			40	9157K24	0000	9110T24	0000
				2"	Welded			40	9157K34	0000	9110T34	0000
				2 1/2"	Welded			40	9157K65	0000	9110T44	0000
				3"	Welded			40	9157K44	0000	9110T54	0000
				3 1/2"	Welded			40	9157K74	0000	9110T919	00000
				4"	Welded			40	9157K54	0000	9110T64	00000
				4 1/2"	Welded			40	9157K741	00000	9110T921	00000
				5"	Welded			40	9157K742	00000	9110T922	00000
				5 1/2"	Welded			40	9157K743	00000	———	0
				6"	Welded			40	9157K95	00000	9110T74	00000


				8"	Welded	40	9157K744	00000	9110T924	00000
				10"	Welded	40	9157K745	00000	9110T925	00000
				12"	Welded	40	9157K746	00000	9110T926	00000




						1 Pipe Size

						1 1/2"	Welded	40	9157K25	0000	9110T25	0000


						2"	Welded	40	9157K35	0000	9110T35	0000
						2 1/2"	Welded	40	9157K66	0000	9110T45	00000
						3"	Welded	40	9157K45	0000	9110T55	00000
						3 1/2"	Welded	40	9157K75	00000	9110T927	00000
						4"	Welded	40	9157K55	00000	9110T65	00000
						4 1/2"	Welded	40	9157K751	00000	9110T928	00000
						5"	Welded	40	9157K752	00000	9110T929	00000
						5 1/2"	Welded	40	9157K753	00000	9110T931	00000
						6"	Welded	40	9157K96	00000	9110T75	00000
8"						Welded	40	9157K754	00000	9110T932	00000


10"	Welded					40	9157K755	00000	9110T933	00000
12"	Welded					40	9157K756	00000	9110T934	00000




						1 1/4 Pipe Size

						1 1/2"	Welded	40	9157K26	0000	9110T26	00000


						2"	Welded	40	9157K36	0000	9110T36	00000
						2 1/2"	Welded	40	9157K67	00000	9110T46	00000
						3"	Welded	40	9157K46	00000	9110T56	00000
						3 1/2"	Welded	40	9157K76	00000	———	0
						4"	Welded	40	9157K56	00000	9110T66	00000
						4 1/2"	Welded	40	9157K761	00000	———	0
						5"	Welded	40	9157K762	00000	9110T937	00000
						6"	Welded	40	9157K97	00000	9110T76	00000
						8"	Welded	40	9157K764	00000	9110T939	00000
						10"	Welded	40	9157K765	00000	9110T941	00000


		12"	Welded			40	9157K766	00000	9110T942	00000




						1 1/2 Pipe Size

						1 1/2"	Welded	40	9157K27	0000	9110T27	00000


						2"	Welded	40	9157K37	00000	9110T37	00000
						2 1/2"	Welded	40	9157K68	00000	9110T47	00000
						3"	Welded	40	9157K47	00000	9110T57	00000
						3 1/2"	Welded	40	9157K77	00000	9110T943	00000
						4"	Welded	40	9157K57	00000	9110T67	00000
						4 1/2"	Welded	40	9157K771	00000	———	0
						5"	Welded	40	9157K772	00000	9110T945	00000
						5 1/2"	Welded	40	9157K773	00000	———	0
						6"	Welded	40	9157K98	00000	9110T77	00000
						8"	Welded	40	9157K774	00000	9110T947	00000


				10"		Welded	40	9157K775	00000	9110T948	00000
				12"	Welded	40	9157K776	00000	9110T949	00000




						2 Pipe Size

						2"	Welded	40	9157K38	00000	9110T38	00000


						2 1/2"	Welded	40	9157K69	00000	9110T48	00000
						3"	Welded	40	9157K48	00000	9110T58	00000
						3 1/2"	Welded	40	9157K78	00000	9110T951	00000
						4"	Welded	40	9157K58	00000	9110T68	00000
						4 1/2"	Welded	40	9157K781	00000	9110T952	00000
						5"	Welded	40	9157K782	00000	9110T953	00000
						5 1/2"	Welded	40	9157K783	00000	9110T954	00000
						6"	Welded	40	9157K99	00000	9110T78	00000
						8"	Welded	40	9157K784	00000	9110T955	00000
						10"	Welded	40	9157K785	00000	9110T956	00000


12"						Welded	40	9157K786	00000	9110T957	00000




						2 1/2 Pipe Size

						2 1/2"	Welded	40	9157K601	00000	———	0


						3"	Welded	40	9157K401	00000	———	0
						3 1/2"	Welded	40	9157K79	00000	9110T958	00000
						4"	Welded	40	9157K501	00000	———	0
						4 1/2"	Welded	40	———	0	9110T959	00000
						5"	Welded	40	9157K792	00000	9110T961	00000
						5 1/2"	Welded	40	9157K793	00000	———	0
						6"	Welded	40	9157K901	00000	———	0
						8"	Welded	40	9157K794	00000	9110T963	000000
						10"	Welded	40	9157K795	00000	———	0
						12"	Welded	40	9157K796	000000	9110T965	000000




						3 Pipe Size

						2 1/2"	Welded	40	9157K602	00000	9110T49	00000


						3"	Welded	40	9157K402	00000	9110T59	00000
						3 1/2"	Welded	40	9157K8	00000	9110T966	00000
						4"	Welded	40	9157K502	00000	9110T69	00000
						4 1/2"	Welded	40	9157K801	00000	———	0
						5"	Welded	40	9157K802	00000	9110T968	00000
						5 1/2"	Welded	40	9157K803	00000	———	0
						6"	Welded	40	9157K902	00000	9110T79	00000
						8"	Welded	40	9157K804	00000	9110T971	000000
						10"	Welded	40	9157K805	000000	9110T972	000000
						12"	Welded	40	9157K806	000000	9110T973	000000




								4 Pipe Size

				2 1/2"				Welded	40	9157K603	00000	9110T82	00000


				3"	Welded			40	9157K403	00000	9110T83	00000
				3 1/2"	Welded			40	9157K81	00000	———	0
				4"	Welded			40	9157K503	00000	9110T84	00000
				4 1/2"	Welded			40	9157K811	00000	———	0
				5"	Welded			40	9157K812	00000	———	0
				6"	Welded			40	9157K903	00000	9110T85	000000
				8"	Welded			40	9157K814	000000	9110T978	000000
				10"	Welded			40	9157K815	000000	———	0
				12"	Welded			40	9157K816	000000	———	0




								6 Pipe Size

								3 1/2"	Welded	40	9157K82	000000	———	0


								4"	Welded	40	9157K504	000000	———	0
6"								Welded	40	9157K904	000000	———	0

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these fittings in a low-pressure pipe line.

Straight Adapters

Female × Butt

Weld

Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.

316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

	Pipe Size			316 Stainless Steel
	(A)	(B)	Pressure Class	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Female × Butt Weld



		3/4	3/4	150	300 psi @ 72° F	150 psi @ 350° F	4452K213	00000


		1 1/2	1 1/2	150	300 psi @ 72° F	150 psi @ 350° F	4452K216	00000
		2 1/2	2 1/2	150	300 psi @ 72° F	150 psi @ 350° F	4452K218	00000
		4	4	150	300 psi @ 72° F	150 psi @ 350° F	4452K221	000000

Low-Pressure Iron and Steel Press-Socket Pipe Fittings

Crimp these fittings onto steel pipe to form a tightly sealed connection that’s faster than threading or welding and doesn’t require heat. An internal gripping ring and rubber O-ring create a secure seal when crimped. They are designed to leak if fittings have not been crimped; a colored dot marks the leak path so it's easy to spot unsealed connections. These steel fittings are coated in zinc-nickel to resist corrosion, but will rust if frequently exposed to saltwater or harsh chemicals. They are comparable to Viega MegaPress steel fittings. Fittings meet ASME B31 code requirements for use in pressure piping systems.

Straight Adapters

Straight

Adapter, Female

Press Connect ×

Female Threaded

Straight

Adapter, Female

Press Connect ×

Male Threaded

Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.

Buna-N O-Ring—Buna-N rubber O-rings hold up to natural gas, propane, diesel fuel, lubricants, and other oils. Fittings with these O-rings are often used in fuel gas systems and air lines. They meet the ANSI LC4/CSA 6.32 standard for fuel gas systems and comply with the International Fuel Gas Code.

EPDM O-Ring—Fittings with an EPDM rubber O-ring are often used for water processing lines, fire sprinklers, and heating and cooling systems. EPDM rubber won’t degrade when exposed to water, ethylene glycol, and propylene glycol. These fittings meet UL 213 and FM 1920 standards for use in fire protection systems.

	Pipe Size
	(A)	(B)	Material	Max. Pressure @ Temp.	O-Ring Material	Certification		Each
Press Socket Female × NPT Male



		1/2	1/2	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N238	000000


		3/4	3/4	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N233	00000
		2	2	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N243	00000


		Press Socket Female × NPT Female



				1/2	1/2	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N244	00000


				1	1	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N252	00000
				1 1/4	1 1/4	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N247	00000
				2	2	Zinc-Plated Steel	125 psi @ 72° F	Buna-N	IAPMO Listed	3360N255	00000

Straight Reducing Adapters

Straight Reducing

Adapter, Female

Press Connect ×

Female Threaded

Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.

	Pipe Size
	(A)	(B)	Material	Max. Pressure @ Temp.	O-Ring Material	Certification		Each
Press Socket Female × NPT Female



		1	1/2	Zinc-Plated Steel	200 psi @ 72° F	EPDM	IAPMO Listed	3360N257	000000

Crimping Tools

Image of Product. Front orientation. Tube Crimpers.

Crimping tools seal fittings in less than five seconds. These tools are cordless, so you can take them to any job. Connect the jaw or ring that matches your pipe size to these tools, then pull the trigger to crimp the fitting. The pivoting head lets you access connections from any angle.

	Battery
Voltage, V DC	No. Included	Cap., A·h	Battery Charger Included	Battery Charging Time, min.	Compatible With		Each
18	2	3	Yes	39	Viega MegaPress, Viega ProPress, Viega ProPress XL-C	2233N106	000000000

Jaw and Ring Sets


	Jaw and Ring Set

Jaw and ring sets include three jaws, three rings, and one ring actuator jaw. Jaws are for pipe sizes 1/2 to 1; they fit directly into the crimping tool. Rings are for pipe sizes 1 1/4 to 2; clip the ring around the fitting and use the ring actuator jaw and crimping tool to press the open ends together.

For Pipe
Size	Material	For Mfr.	For Mfr. Model No.	Compatible With	Includes	Container Type		Each
1/2, 3/4, 1, 1 1/4, 1 1/2, 2	Stainless Steel, Steel	Ridgid	RP 340	Viega MegaPress	One Ring Actuator Jaw, Three Jaws (1/2-1 Pipe Size), Three Rings (1 1/4-2 Pipe Size)	Carrying Case	2233N318	000000000

Low-Pressure Aluminum Quick-Connect Pipe Fittings

Twist these fittings onto aluminum pipe for quick, sealed connections—no threading, soldering, or welding necessary. Use them to build a compressed air system in half the time it would take to build a copper or steel system. Also known as Unipipe fittings, they’re part of a quick-connect system that’s compatible with pipe from Unipipe, Transair, and Infinity.

Finger tighten the collar on the end of these fittings, then use a wrench for the final quarter turn. The inside of these fittings has a compression ring and O-ring to seal against the pipe. They’re easy to take apart as needed to modify your setup.

Straight Adapters

Female x Male

Threaded Fitting Connection—These adapters have pipe threads on one end to connect to your compressor or other component. Threaded connections can be taken apart as needed for maintenance and repair.

Blue Collar—Fittings with a blue collar are often used for compressed air systems.

Gray Collar—Fittings with a gray collar are often used for vacuum systems.

	For Pipe OD (A)	Material	Color	Collar Color	Max. Pressure @ Temp.		Each
Quick-Connect Female × NPT Male



	3/4	3/4" (20 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N35	000000


	3/4	3/4" (20 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N108	00000
	1	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N38	00000
	1	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N112	00000
	1 1/2	1 1/2" (40 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N41	00000
	1 1/2	1 1/2" (40 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N114	00000

Straight Reducing Adapters

Blue Collar—Fittings with a blue collar are often used for compressed air systems.

Gray Collar—Fittings with a gray collar are often used for vacuum systems.

	For Pipe OD (A)	Material	Color	Collar Color	Max. Pressure @ Temp.		Each
Quick-Connect Female × NPT Male



	1/2	3/4" (20 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N34	000000


	1/2	3/4" (20 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N107	00000
	1/2	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N36	00000
	1/2	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N109	00000
	3/4	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N37	00000
	3/4	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N111	00000
	1 1/4	1 1/2" (40 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N39	00000
	1 1/4	1 1/2" (40 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N113	00000


	Quick-Connect Female × NPT Female



			1/2	3/4" (20 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N42	00000


			1/2	3/4" (20 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N115	00000
			3/4	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N43	00000
			3/4	1" (25 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N116	00000
			1 1/4	1 1/2" (40 mm)	Epoxy-Coated 6061 Aluminum	Black	Blue	230 psi @ 72° F	5314N44	00000
			1 1/4	1 1/2" (40 mm)	Epoxy-Coated 6061 Aluminum	Black	Gray	230 psi @ 72° F	5314N117	00000

Ball Valve Connectors

Connector Fitting

Add a ball valve to control the flow in your line.

	Body Material	Color	Collar Color	Max. Pressure @ Temp.		Each
Quick-Connect Female Connector



	3/4" (20 mm)	Steel	Black, Blue	Blue	230 psi @ 72° F	5314N48	000000


	3/4" (20 mm)	Steel	Black, Gray	Gray	230 psi @ 72° F	5314N122	00000
	1" (25 mm)	Steel	Black, Blue	Blue	230 psi @ 72° F	5314N49	00000
	1" (25 mm)	Steel	Black, Gray	Gray	230 psi @ 72° F	5314N123	00000
	1 1/2" (40 mm)	Steel	Black, Blue	Blue	230 psi @ 72° F	5314N51	000000
	1 1/2" (40 mm)	Steel	Black, Gray	Gray	230 psi @ 72° F	5314N124	000000

Ball Valve Adapters

Adapter

Add a ball valve to control the flow in your line.

	Pipe Size (B)	Body Material	Color	Collar Color	Max. Pressure @ Temp.		Each
Quick-Connect Female × NPT Male Adapter



	3/4" (20 mm)	1/2	Steel	Black, Blue	Blue	230 psi @ 72° F	5314N52	000000


	3/4" (20 mm)	1/2	Steel	Black, Gray	Gray	230 psi @ 72° F	5314N125	00000
	1" (25 mm)	3/4	Steel	Black, Blue	Blue	230 psi @ 72° F	5314N53	00000
	1" (25 mm)	3/4	Steel	Black, Gray	Gray	230 psi @ 72° F	5314N126	00000
	1 1/2" (40 mm)	1 1/4	Steel	Black, Blue	Blue	230 psi @ 72° F	5314N54	000000
	1 1/2" (40 mm)	1 1/4	Steel	Black, Gray	Gray	230 psi @ 72° F	5314N127	000000

Wrenches

For Pipe OD	Drive Size, mm	Overall Lg., mm	Head Thk., mm	Material		Each
3/4"	20	172	5	Galvanized Steel	5314N81	000000
1"	25	192	5	Galvanized Steel	5314N82	00000
1 1/2"	40	245	5	Galvanized Steel	5314N83	00000

Measuring Tools

Image of Product. Front orientation. Depth Gauges.

Use measuring tools to mark your pipe’s proper insertion depth so you know if it’s inserted far enough into the fitting.

Max. Dp. Measured, mm	Lg., mm	Wd., mm	Material		Each
160	224	39	Plastic	5314N77	000000