Steel Close Nipples | McMaster-Carr

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Pipe Schedule

Length

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For Flange Class

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

Yes

Export Control Classification Number (ECCN)

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REACH

Specifications Met

Maximum Pressure @ Temperature

150 psi @ 72° F

Fitting Finished Material

304 Stainless Steel

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Finish

240 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

Fitting Type

Adapter

Bridge the gap between pipe with different fitting connections

19 products

Performance

Chemical Resistant

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

80 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—Fully Threaded

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

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
	Pipe Size	Lg.	Construction	Pipe Schedule		Each		Each
NPT Male
Male


		1/8	3/4"	Seamless	40	4830K111	00000	4548K111	00000


		1/4	7/8"	Seamless	40	4830K131	0000	4548K131	0000
		3/8	1"	Seamless	40	4830K151	0000	4548K381	0000
		1/2	1 1/8"	Welded	40	4830K171	0000	4548K171	0000
		3/4	1 3/8"	Welded	40	4830K191	0000	4548K191	0000
		1	1 1/2"	Welded	40	4830K221	0000	4548K221	0000
		1 1/4	1 5/8"	Welded	40	4830K241	0000	4548K241	00000
		1 1/2	1 3/4"	Welded	40	4830K261	0000	4548K261	00000
		2	2"	Welded	40	4830K281	00000	4548K281	00000
		2 1/2	2 1/2"	Welded	40	4830K293	00000	4548K123	00000
		3	2 5/8"	Welded	40	4830K294	00000	4548K124	00000


		4	2 7/8"	Welded	40	4830K295	00000	4548K125	00000


		BSPT Male
		Male


				1/8	3/4"	Welded	40	2427K11	0000	———	0


				1/4	7/8"	Welded	40	2427K21	0000	———	0
				3/8	1"	Welded	40	2427K31	0000	———	0
				1/2	1 1/8"	Welded	40	2427K41	0000	———	0
				3/4	1 3/8"	Welded	40	2427K51	0000	———	0
				1	1 1/2"	Welded	40	2427K61	0000	———	0
				1 1/2	1 3/4"	Welded	40	2427K71	00000	———	0
				2	2"	Welded	40	2427K81	00000	———	0

Pipe Adapters—Fully Threaded

Male × Male

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

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

Welded—Pipe has a weld bead on the inside.

	Pipe Size					304/304L Stainless Steel
	(A)	(B)	Lg.	Construction	Pipe Schedule		Each
BSPT Male × NPT Male



		1/8	1/8	3/4"	Welded	40	2427K111	00000


		1/4	1/4	7/8"	Welded	40	2427K121	0000
		3/8	3/8	1"	Welded	40	2427K131	0000
		1/2	1/2	1 1/8"	Welded	40	2427K141	0000
		3/4	3/4	1 3/8"	Welded	40	2427K151	0000
		1	1	1 1/2"	Welded	40	2427K161	0000
		1 1/2	1 1/2	1 3/4"	Welded	40	2427K171	00000
		2	2	2"	Welded	40	2427K181	00000

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

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

Pipe—Fully Threaded

Male

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

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

Welded—Pipe has a weld bead on the inside.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/8	3/4"	Welded	40	Steel	44615K411	00000


	1/4	7/8"	Welded	40	Steel	44615K412	0000
	3/8	1"	Welded	40	Steel	44615K413	0000
	1/2	1 1/8"	Welded	40	Steel	44615K414	0000
	3/4	1 3/8"	Welded	40	Steel	44615K415	0000
	1	1 1/2"	Welded	40	Steel	44615K416	0000
	1 1/4	1 5/8"	Welded	40	Steel	44615K417	0000
	1 1/2	1 3/4"	Welded	40	Steel	44615K418	0000
	2	2"	Welded	40	Steel	44615K419	0000
	2 1/2	2 1/2"	Welded	40	Steel	44615K111	00000
	3	2 5/8"	Welded	40	Steel	44615K121	00000


	4	2 7/8"	Welded	40	Steel	44615K131	00000
	6	3 1/8"	Welded	40	Steel	44615K138	00000


	BSPT Male



			1/2	1 1/8"	Welded	40	Steel	4788K414	0000


			3/4	1 3/8"	Welded	40	Steel	4788K415	0000
			1	1 1/2"	Welded	40	Steel	4788K416	00000
			1 1/4	1 5/8"	Welded	40	Steel	4788K417	00000
			1 1/2	1 3/4"	Welded	40	Steel	4788K418	00000
			2	2"	Seamless	40	Steel	4788K419	00000

Pipe Adapters—Fully Threaded

Male

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

Welded—Pipe has a weld bead on the inside.

	Pipe Size
	(A)	(B)	Lg.	Construction	Pipe Schedule	Material		Each
BSPT Male × NPT Male



		1/2	1/2	1 3/16"	Welded	40	Steel	4778K194	000000


		3/4	3/4	1 11/32"	Welded	40	Steel	4778K195	00000
		1	1	1 31/64"	Welded	40	Steel	4778K196	00000
		1 1/4	1 1/4	1 5/8"	Welded	40	Steel	4778K197	00000
		1 1/2	1 1/2	1 49/64"	Welded	40	Steel	4778K198	00000
		2	2	1 59/64"	Welded	40	Steel	4778K199	00000

Standard-Wall Galvanized Iron and 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.

Pipe—Fully Threaded

Male

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

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

Welded—Pipe has a weld bead on the inside.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/8	3/4"	Welded	40	Galvanized Steel	4549K511	00000


	1/4	7/8"	Welded	40	Galvanized Steel	4549K931	0000
	3/8	1"	Welded	40	Galvanized Steel	4549K551	0000
	1/2	1 1/8"	Welded	40	Galvanized Steel	4549K571	0000
	3/4	1 3/8"	Welded	40	Galvanized Steel	4549K591	0000
	1	1 1/2"	Welded	40	Galvanized Steel	4549K611	0000
	1 1/4	1 5/8"	Welded	40	Galvanized Steel	4549K631	0000
	1 1/2	1 3/4"	Welded	40	Galvanized Steel	4549K651	0000
	2	2"	Welded	40	Galvanized Steel	4549K671	0000
	2 1/2	2 1/2"	Welded	40	Galvanized Steel	4549K681	00000
	3	2 5/8"	Welded	40	Galvanized Steel	4549K691	00000


	4	2 7/8"	Welded	40	Galvanized Steel	4549K711	00000
	6	3 1/8"	Welded	40	Galvanized Steel	4549K714	000000


	BSPT Male



			1/2	1 1/8"	Welded	40	Galvanized Steel	4859K414	0000


			3/4	1 3/8"	Welded	40	Galvanized Steel	4859K415	00000
			1	1 1/2"	Welded	40	Galvanized Steel	4859K416	00000
			1 1/4	1 5/8"	Welded	40	Galvanized Steel	4859K417	00000
			1 1/2	1 3/4"	Welded	40	Galvanized Steel	4859K418	00000
			2	2"	Seamless	40	Galvanized Steel	4859K419	00000

Pipe Adapters—Fully Threaded

Male

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

Welded—Pipe has a weld bead on the inside.

	Pipe Size
	(A)	(B)	Lg.	Construction	Pressure Class	Pipe Schedule	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
BSPT Male × NPT Male



		1/2	1/2	1 3/16"	Welded	150	40	Galvanized Steel	150 psi @ 72° F	150 psi @ 360° F	4888K194	000000


		3/4	3/4	1 11/32"	Welded	150	40	Galvanized Steel	150 psi @ 72° F	150 psi @ 360° F	4888K195	00000
		1	1	1 31/64"	Welded	150	40	Galvanized Steel	150 psi @ 72° F	150 psi @ 360° F	4888K196	00000
		1 1/2	1 1/2	1 49/64"	Welded	150	40	Galvanized Steel	150 psi @ 72° F	150 psi @ 360° F	4888K198	00000
		2	2	1 59/64"	Welded	150	40	Galvanized Steel	150 psi @ 72° F	150 psi @ 360° F	4888K199	00000

Thick-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Also known as Schedule 80, this pipe has thick walls for good strength in high-pressure applications.

Pipe—Fully Threaded

Male

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

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

Welded—Pipe has a weld bead on the inside.

Phosphate-Coated Steel—A phosphate coating gives it some corrosion resistance, but this pipe shouldn’t be used in corrosive environments.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/8	3/4"	Seamless	80	Phosphate-Coated Steel	7727K101	00000


	1/8	3/4"	Welded	80	Steel	4550K111	0000
	1/4	7/8"	Seamless	80	Phosphate-Coated Steel	7727K131	0000
	1/4	7/8"	Welded	80	Steel	4550K131	0000
	3/8	1"	Seamless	80	Phosphate-Coated Steel	7727K161	0000
	3/8	1"	Welded	80	Steel	4550K151	0000
	1/2	1 1/8"	Seamless	80	Phosphate-Coated Steel	7727K191	0000
	1/2	1 1/8"	Welded	80	Steel	4550K171	0000
	3/4	1 3/8"	Seamless	80	Phosphate-Coated Steel	7727K221	0000
	3/4	1 3/8"	Welded	80	Steel	4550K191	0000
	1	1 1/2"	Seamless	80	Phosphate-Coated Steel	7727K251	0000


	1	1 1/2"	Welded	80	Steel	4550K221	0000
	1 1/4	1 5/8"	Seamless	80	Phosphate-Coated Steel	7727K281	0000
	1 1/4	1 5/8"	Welded	80	Steel	4550K241	0000
	1 1/2	1 3/4"	Seamless	80	Phosphate-Coated Steel	7727K311	0000
	1 1/2	1 3/4"	Welded	80	Steel	4550K261	0000
	2	2"	Seamless	80	Phosphate-Coated Steel	7727K341	00000
	2	2"	Welded	80	Steel	4550K281	00000
	2 1/2	2 1/2"	Seamless	80	Phosphate-Coated Steel	7727K371	00000
	3	2 5/8"	Seamless	80	Phosphate-Coated Steel	7727K401	00000
	4	2 7/8"	Seamless	80	Phosphate-Coated Steel	7727K431	00000

Thick-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Thick walls, also known as Schedule 80, give this pipe the strength to handle high-pressure applications.

Pipe—Fully Threaded

Male

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

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

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

					304/304L Stainless Steel		316/316L Stainless Steel
	Pipe Size	Lg.	Construction	Pipe Schedule		Each		Each
NPT Male



		1/8	3/4"	Seamless	80	46755K11	00000	4475K11	00000


		1/4	7/8"	Seamless	80	46755K12	0000	4475K12	0000
		3/8	1"	Seamless	80	46755K13	0000	4475K13	0000
		1/2	1 1/8"	Seamless	80	46755K14	0000	4475K14	0000
		3/4	1 3/8"	Seamless	80	46755K15	0000	4475K15	00000
		1	1 1/2"	Seamless	80	46755K16	00000	4475K16	00000
		1 1/4	1 5/8"	Seamless	80	46755K17	00000	4475K17	00000
		1 1/2	1 3/4"	Seamless	80	46755K18	00000	4475K18	00000
		2	2"	Seamless	80	46755K19	00000	4475K19	00000
		3	2 5/8"	Seamless	80	46755K261	00000	4475K251	000000
		4	2 7/8"	Seamless	80	46755K271	00000	4475K271	000000

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe with Sealant

For extra leak protection in low-pressure lines, the threads of this Schedule 40 pipe have sealant already applied. Its threading lets you easily dismantle connections for maintenance and repair. Made of steel, you should use it in noncorrosive applications.

Pipe—Fully Threaded

Male

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

Welded—Pipe has a weld bead on the inside.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/8	3/4"	Welded	40	Steel	7736N101	00000


	1/4	7/8"	Welded	40	Steel	7736N102	0000
	3/8	1"	Welded	40	Steel	7736N103	0000
	1/2	1 1/8"	Welded	40	Steel	7736N104	0000
	3/4	1 3/8"	Welded	40	Steel	7736N105	0000
	1	1 1/2"	Welded	40	Steel	7736N106	0000
	1 1/2	1 3/4"	Welded	40	Steel	7736N107	0000
	2	2"	Welded	40	Steel	7736N108	00000

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe with Sealant

The threads on this pipe have a sealant applied for extra leak protection in low-pressure applications. Pipe is also known as Schedule 40.

Pipe—Fully Threaded

Male

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

304/304L Stainless Steel—Pipe holds up in humid, damp, and washdown environments but will corrode if exposed to salt water or 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
	Pipe Size	Lg.	Construction	Pipe Schedule		Each		Each
NPT Male



		1/8	3/4"	Seamless	40	1455N111	00000	1443N111	00000


		1/4	7/8"	Seamless	40	1455N112	0000	1443N112	0000
		3/8	1"	Seamless	40	1455N113	0000	1443N113	0000
		1/2	1 1/8"	Welded	40	1455N114	0000	1443N114	0000
		3/4	1 3/8"	Welded	40	1455N115	0000	1443N115	00000
		1	1 1/2"	Welded	40	1455N116	00000	1443N116	00000
		1 1/4	1 5/8"	Welded	40	1455N117	00000	1443N117	00000
		1 1/2	1 3/4"	Welded	40	1455N118	00000	1443N118	00000
		2	2"	Welded	40	1455N119	00000	1443N119	00000

Thick-Wall Galvanized Iron and Steel Threaded Pipe Nipples and Pipe

Made of galvanized iron or steel, this pipe has fair corrosion resistance. It has thick, Schedule 80 walls for good strength in high-pressure applications.

Pipe—Fully Threaded

Male

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

Welded—Pipe has a weld bead on the inside.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/4	7/8"	Welded	80	Galvanized Steel	1867N11	00000


	3/8	1"	Welded	80	Galvanized Steel	1867N21	0000
	1/2	1 1/8"	Welded	80	Galvanized Steel	1867N31	0000
	3/4	1 3/8"	Welded	80	Galvanized Steel	1867N41	0000
	1 1/4	1 5/8"	Welded	80	Galvanized Steel	1867N61	00000
	1 1/2	1 3/4"	Welded	80	Galvanized Steel	1867N71	00000
	2	2"	Welded	80	Galvanized Steel	1867N81	00000

Extra-Thick-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Extra-thick walls give this pipe excellent strength to handle high-pressure applications. It is also known as Schedule 160.

Pipe—Fully Threaded

Male

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

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

Phosphate-Coated Steel—A phosphate coating gives it some corrosion resistance, but this pipe shouldn’t be used in corrosive environments.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/2	1 1/8"	Seamless	160	Phosphate-Coated Steel	7733K101	00000


	3/4	1 3/8"	Seamless	160	Phosphate-Coated Steel	7733K131	00000
	1	1 1/2"	Seamless	160	Phosphate-Coated Steel	7733K161	00000
	1 1/4	1 5/8"	Seamless	160	Phosphate-Coated Steel	7733K191	00000
	1 1/2	1 3/4"	Seamless	160	Phosphate-Coated Steel	7733K221	00000
	2	2"	Seamless	160	Phosphate-Coated Steel	7733K251	00000
	2 1/2	2 1/2"	Seamless	160	Phosphate-Coated Steel	7733K281	000000
	3	2 5/8"	Seamless	160	Phosphate-Coated Steel	7733K311	000000
	4	2 7/8"	Seamless	160	Phosphate-Coated Steel	7733K341	000000

Standard-Wall Galvanized Iron and Steel Threaded Pipe Nipples and Pipe with Sealant

The acrylic sealant on this pipe offers extra protection against leaks. Also known as schedule 40 pipe, this pipe is designed for use in low-pressure environments. It has fair corrosion resistance since it’s made of galvanized steel, but it should be primarily used in noncorrosive applications. Since this pipe’s connections are threaded, it can be taken apart as needed for maintenance and repair.

Pipe—Fully Threaded

Male

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

Welded—Pipe has a weld bead on the inside.

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/4	7/8"	Welded	40	Galvanized Steel	5116N12	00000


	1/2	1 1/8"	Welded	40	Galvanized Steel	5116N14	0000
	3/4	1 3/8"	Welded	40	Galvanized Steel	5116N15	0000
	1	1 1/2"	Welded	40	Galvanized Steel	5116N16	0000

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Compact Straight Connectors

Female

Compact straight connectors are able to fit into tight spaces. They are also known as merchant couplings.

NPSC Thread—NPSC (National Pipe Straight Coupling) threads are compatible with NPT threads.

	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPSC Female



	1/8	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K261	00000


	1/4	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K262	0000
	3/8	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K263	0000
	1/2	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K264	0000
	3/4	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K265	0000
	1	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K266	0000
	1 1/4	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K267	00000
	1 1/2	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K268	00000
	2	150	Steel	150 psi @ 72° F	150 psi @ 350° F	46685K269	00000

180° Bend Connectors

Image of Product. Front orientation. Pipe Traps. Low-Pressure Iron and Steel Threaded Pipe Fittings.

180° bend connectors are also known as U-bends.

	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification	Shape		Each
NPT Female



	1/2	Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	44605K563	000000


	3/4	Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	44605K564	00000
	1	Iron	150 psi @ 72° F	150 psi @ 350° F	—	180° Bend	44605K565	00000
	1 1/4	Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	44605K566	00000
	1 1/2	Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	44605K567	000000
	2	Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	44605K568	000000

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe Assortments

Male

Assortments contain threaded pipe in various lengths. Pipe is Schedule 40 and can handle low-pressure applications. It is welded, so there is a weld bead on the inside. Use in noncorrosive environments. Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

	No. of Pieces	Pipe Schedule	Includes	Material		Each
NPT Male



	1/4	100	40	20 fully threaded 7/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Steel	4561K11	0000000


	3/8	100	40	20 fully threaded 1" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Steel	4561K12	000000
	1/2	66	40	6 fully threaded 1 1/8" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 1 1/2” (6 ea.), 2” (6 ea.), 2 1/2” (6 ea.), 3” (6 ea.), 3 1/2” (6 ea.), 4” (6 ea.), 4 1/2” (6 ea.), 5” (6 ea.), 5 1/2" (6 ea.), 6" (6 ea.)	Steel	4561K33	000000
	1/2	100	40	20 fully threaded 1 1/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Steel	4561K13	000000
	3/4	66	40	6 fully threaded 1 3/8" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 1 1/2” (6 ea.), 2” (6 ea.), 2 1/2” (6 ea.), 3” (6 ea.), 3 1/2” (6 ea.), 4” (6 ea.), 4 1/2” (6 ea.), 5” (6 ea.), 5 1/2" (6 ea.), 6" (6 ea.)	Steel	4561K34	000000
	3/4	100	40	20 fully threaded 1 3/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Steel	4561K14	000000
	1	30	40	3 fully threaded 1 1/2" Lg. nipples 27 threaded-on-both-ends nipples in the following lengths: 2” (3 ea.), 2 1/2” (3 ea.), 3” (3 ea.), 3 1/2” (3 ea.), 4” (3 ea.), 4 1/2” (3 ea.), 5” (3 ea.), 5 1/2” (3 ea.), 6" (3 ea.)	Steel	4561K36	000000
	1	75	40	15 fully threaded 1 1/2" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 2” (15 ea.), 2 1/2” (10 ea.), 3” (12 ea.), 3 1/2” (5 ea.), 4” (5 ea.), 4 1/2” (4 ea.), 5” (3 ea.), 5 1/2” (3 ea.), 6" (3 ea.)	Steel	4561K15	000000
	1 1/4	25	40	6 fully threaded 1 5/8" Lg. nipples 19 threaded-on-both-ends nipples in the following lengths: 2” (4 ea.), 2 1/2” (3 ea.), 3” (2 ea.), 3 1/2” (2 ea.), 4” (2 ea.), 4 1/2” (1 ea.), 5” (2 ea.), 5 1/2” (1 ea.), 6" (2 ea.)	Steel	4561K56	000000
	1 1/2	25	40	19 threaded-on-both-ends nipples in the following lengths: 2” (4 ea.), 2 1/2” (3 ea.), 3” (2 ea.), 3 1/2” (2 ea.), 4” (2 ea.), 4 1/2” (1 ea.), 5” (2 ea.), 5 1/2” (1 ea.), 6" (2 ea.) 6 fully threaded 1 3/4" Lg. nipples	Steel	4561K57	000000
	2	25	40	6 fully threaded 2" Lg. nipples 19 threaded-on-both-ends nipples in the following lengths: 2 1/2” (3 ea.), 3” (3 ea.), 3 1/2” (2 ea.), 4” (3 ea.), 4 1/2” (1 ea.), 5” (3 ea.), 5 1/2” (1 ea.), 6” (3 ea.)	Steel	4561K58	000000

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Compact Straight Connectors

Image of Product. Front orientation. Pipe and Fittings. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings, Compact Straight Connectors, Female, Threaded Fitting Connection.

Threaded Fitting

Connection,

Female

Compact straight connectors are able to fit into tight spaces. They are also known as merchant couplings.

NPSC Thread—NPSC (National Pipe Straight Coupling) threads are compatible with NPT threads.

	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPSC Female



	1/8	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K461	00000


	1/4	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K462	0000
	3/8	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K463	0000
	1/2	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K464	0000
	3/4	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K465	0000
	1	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K466	00000
	1 1/4	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K467	00000
	1 1/2	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K468	00000
	2	150	Galvanized Steel	150 psi @ 72° F	150 psi @ 350° F	46685K469	00000

180° Bend Connectors

Image of Product. Front orientation. Pipe Traps. Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings.

180° bend connectors are also known as U-bends.

	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification	Shape		Each
NPT Female



	3/4	Galvanized Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	4638K299	000000


	1	Galvanized Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	4638K385	00000
	1 1/2	Galvanized Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	4638K556	000000
	2	Galvanized Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	4638K557	000000

Standard-Wall Galvanized Iron and Steel Threaded Pipe Nipples and Pipe Assortments

Male

Assortments contain threaded pipe in various lengths. The galvanized finish on this pipe provides fair corrosion resistance. Also known as Schedule 40, it is designed for low-pressure applications. Pipe is welded, so there is 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.

	No. of Pieces	Pipe Schedule	Includes	Material		Each
NPT Male



	1/4	100	40	20 fully threaded 7/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Galvanized Steel	4561K21	0000000


	3/8	100	40	20 fully threaded 1" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Galvanized Steel	4561K22	000000
	1/2	66	40	6 fully threaded 1 1/8" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 1 1/2” (6 ea.), 2” (6 ea.), 2 1/2” (6 ea.), 3” (6 ea.), 3 1/2” (6 ea.), 4” (6 ea.), 4 1/2” (6 ea.), 5” (6 ea.), 5 1/2" (6 ea.), 6" (6 ea.)	Galvanized Steel	4561K43	000000
	1/2	100	40	20 fully threaded 1 1/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Galvanized Steel	4561K23	000000
	3/4	66	40	6 fully threaded 1 3/8" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 1 1/2” (6 ea.), 2” (6 ea.), 2 1/2” (6 ea.), 3” (6 ea.), 3 1/2” (6 ea.), 4” (6 ea.), 4 1/2” (6 ea.), 5” (6 ea.), 5 1/2" (6 ea.), 6" (6 ea.)	Galvanized Steel	4561K44	000000
	3/4	100	40	20 fully threaded 1 3/8" Lg. nipples 80 threaded-on-both-ends nipples in the following lengths: 1 1/2” (10 ea.), 2” (15 ea.), 2 1/2” (10 ea.), 3” (10 ea.), 3 1/2” (5 ea.), 4” (10 ea.), 4 1/2” (5 ea.), 5” (5 ea.), 5 1/2" (5 ea.), 6" (5 ea.)	Galvanized Steel	4561K24	000000
	1	30	40	3 fully threaded 1 1/2" Lg. nipples 27 threaded-on-both-ends nipples in the following lengths: 2” (3 ea.), 2 1/2” (3 ea.), 3” (3 ea.), 3 1/2” (3 ea.), 4” (3 ea.), 4 1/2” (3 ea.), 5” (3 ea.), 5 1/2” (3 ea.), 6" (3 ea.)	Galvanized Steel	4561K46	000000
	1	75	40	15 fully threaded 1 1/2" Lg. nipples 60 threaded-on-both-ends nipples in the following lengths: 2” (12 ea.), 2 1/2” (5 ea.), 3” (12 ea.), 3 1/2” (3 ea.), 4” (12 ea.), 4 1/2” (3 ea.), 5” (3 ea.), 5 1/2” (5 ea.), 6" (5 ea.)	Galvanized Steel	4561K25	000000
	1 1/4	25	40	5 fully threaded 1 5/8" Lg. nipples 20 threaded-on-both-ends nipples in the following lengths: 2” (5 ea.), 2 1/2” (3 ea.), 3” (2 ea.), 3 1/2” (2 ea.), 4” (2 ea.), 4 1/2” (1 ea.), 5” (2 ea.), 5 1/2” (1 ea.), 6" (2 ea.)	Galvanized Steel	4561K76	000000
	1 1/2	25	40	5 fully threaded 1 3/4" Lg. nipples 20 threaded-on-both-ends nipples in the following lengths: 2” (5 ea.), 2 1/2” (3 ea.), 3” (2 ea.), 3 1/2” (2 ea.), 4” (2 ea.), 4 1/2” (1 ea.), 5” (2 ea.), 5 1/2” (1 ea.), 6" (2 ea.)	Galvanized Steel	4561K77	000000
	2	25	40	6 fully threaded 2" Lg. nipples 19 threaded-on-both-ends nipples in the following lengths: 2 1/2” (3 ea.), 3” (3 ea.), 3 1/2” (2 ea.), 4” (3 ea.), 4 1/2” (1 ea.), 5” (3 ea.), 5 1/2” (1 ea.), 6” (3 ea.)	Galvanized Steel	4561K78	000000

Ultra-Thick-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Also known as Schedule XXH, this heavy duty pipe has the thickest, strongest walls of all the threaded pipe we offer. Use in noncorrosive environments.

Pipe—Fully Threaded

Male

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

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

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/2	1 1/8"	Seamless	XXH	Steel	6850T11	000000


	3/4	1 3/8"	Seamless	XXH	Steel	6850T17	00000
	1	1 1/2"	Seamless	XXH	Steel	6850T24	00000
	1 1/4	1 5/8"	Seamless	XXH	Steel	6850T84	00000
	1 1/2	1 3/4"	Seamless	XXH	Steel	6850T31	00000
	2	2"	Seamless	XXH	Steel	6850T37	00000

Extra-Thick-Wall Galvanized Iron and Steel Threaded Pipe Nipples and Pipe

Also known as Schedule 160, this pipe has extra-thick walls for excellent strength. It has a galvanized finish that provides better corrosion resistance than our plain steel pipe.

Pipe—Fully Threaded

Male

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

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

	Lg.	Construction	Pipe Schedule	Material		Each
NPT Male



	1/2	1 1/8"	Seamless	160	Galvanized Steel	7736K113	000000


	3/4	1 3/8"	Seamless	160	Galvanized Steel	7736K114	00000
	1	1 1/2"	Seamless	160	Galvanized Steel	7736K115	00000
	1 1/4	1 5/8"	Seamless	160	Galvanized Steel	7736K116	00000
	1 1/2	1 3/4"	Seamless	160	Galvanized Steel	7736K117	00000
	2	2"	Seamless	160	Galvanized Steel	7736K118	00000