Black Iron Pipe Fitting Plugs

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Specifications Met

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Finish

Zinc Phosphate Coated

DFARS Specialty Metals

Exempt

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

Yes

RoHS

Compliant

Compliant with Exemptions

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

EAR99

Maximum Steam Pressure @ Temperature

211 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

Adapter

Bridge the gap between pipe with different fitting connections

13 products

Reducing Adapter

Join pipe of different sizes and fitting connections

13 products

Fitting Type

Bushing

Connect pipe of different sizes while taking up less space than reducers

13 products

Reducer

Transition between pipe of different sizes

13 products

Low-Pressure Iron and Steel Threaded Pipe Fittings

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

Caps

Female

Female (Hex)

	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Female



	1/8	150	Hex	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K171	00000


	1/4	150	Hex	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K172	0000
	3/8	150	Hex	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K173	0000
	1/2	150	Hex	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K174	0000
	3/4	150	Hex	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K201	0000
	1	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K654	0000
	1 1/4	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K655	0000
	1 1/2	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K656	00000
	2	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K657	00000
	2 1/2	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K658	00000
	3	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K391	00000


	4	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K392	00000
	6	150	—	Iron	150 psi @ 72° F	150 psi @ 350° F	44605K536	000000


	BSPT Female



			1/4	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K142	0000


			3/8	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K143	0000
			1/2	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K144	0000
			3/4	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K145	0000
			1	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K146	0000
			1 1/4	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K147	0000
			1 1/2	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K148	00000
			2	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K149	00000
			2 1/2	150	—	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K15	00000

Hex-Drive Plugs

Male

	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/8	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K231	00000


	1/4	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K232	0000
	3/8	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K233	0000
	1/2	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K234	0000
	3/4	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K235	0000
	1	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K667	0000
	1 1/4	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K668	0000
	1 1/2	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K669	0000
	2	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K671	00000

Square-Drive Plugs

Male

	Construction	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/8	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K672	00000


	1/4	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K673	0000
	3/8	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K674	0000
	1/2	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K675	0000
	3/4	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K676	0000
	1	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K677	0000
	1 1/4	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K678	0000
	1 1/2	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K679	00000
	2	Solid	150	Steel	150 psi @ 72° F	150 psi @ 350° F	44605K681	00000
	2 1/2	Hollow	125	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K705	00000
	3	Hollow	125	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K706	00000


	3 1/2	Hollow	125	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K707	00000
	4	Hollow	125	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K708	000000

External-Square-Drive Plugs

	Construction	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male
Male


	1/8	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K921	00000


	1/4	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K222	0000
	3/8	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K223	0000
	1/2	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K224	0000
	3/4	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K225	0000
	1	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K663	0000
	1 1/4	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K664	0000
	1 1/2	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K665	00000
	2	Solid	Not Rated	Square	Steel	Not Rated	Not Rated	44605K666	00000
	2 1/2	Hollow	125	Square	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K701	00000
	3	Hollow	125	Square	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K702	00000


	3 1/2	Hollow	125	Square	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K703	00000
	4	Hollow	125	Square	Iron	175 psi @ 72° F	125 psi @ 350° F	44605K704	00000


	BSPT Male
	Male


			1/4	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K152	0000


			3/8	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K153	0000
			1/2	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K154	0000
			3/4	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K155	0000
			1	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K156	0000
			1 1/4	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K157	0000
			1 1/2	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K158	0000
			2	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K159	00000
			2 1/2	Hollow	150	Square	Iron	150 psi @ 72° F	150 psi @ 360° F	4778K16	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

Locknuts

NPSL Thread—NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.

DIN 431—Locknuts that meet DIN 431 comply with international standards for pipe fitting locknut dimensions.

	Finished Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Specs. Met		Each
NPT Female



	3	Iron	175 psi @ 72° F	125 psi @ 350° F	—	44605K488	000000


	NPSL Female



			1/4	Steel	Not Rated	Not Rated	—	44605K434	0000


			3/8	Iron	Not Rated	Not Rated	—	44605K211	0000
			1/2	Iron	Not Rated	Not Rated	—	44605K212	0000
			3/4	Iron	Not Rated	Not Rated	—	44605K213	0000
			1	Iron	Not Rated	Not Rated	—	44605K214	00000
			1 1/4	Iron	Not Rated	Not Rated	—	44605K215	0000
			1 1/2	Iron	Not Rated	Not Rated	—	44605K216	00000
			2	Iron	Not Rated	Not Rated	—	44605K217	00000


			BSPP Female



					1/4	Steel	Not Rated	Not Rated	DIN 431	3555N12	0000


					3/8	Steel	Not Rated	Not Rated	DIN 431	3555N13	0000
					1/2	Steel	Not Rated	Not Rated	DIN 431	3555N14	0000
					3/4	Steel	Not Rated	Not Rated	DIN 431	3555N15	0000
					1	Steel	Not Rated	Not Rated	DIN 431	3555N16	00000
					1 1/4	Steel	Not Rated	Not Rated	DIN 431	3555N17	00000
					1 1/2	Steel	Not Rated	Not Rated	DIN 431	3555N18	00000
					2	Steel	Not Rated	Not Rated	DIN 431	3555N19	00000

Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

To prevent leaks in low-pressure lines, the male threads on these fittings have an acrylic sealant already applied for extra protection. Also known as Pressure Class 125 or 150 fittings. Made of either iron or steel, they’re best in noncorrosive environments. Even with sealant, threaded connections can be taken apart for maintenance and repair.

Hex-Drive Plugs

NPT Male

	Construction	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/8	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N32	00000


	1/4	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N33	0000
	3/8	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N34	0000
	1/2	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N35	0000
	3/4	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N36	0000
	1	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N37	0000
	1 1/4	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N38	0000
	1 1/2	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N39	00000
	2	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N41	00000

Square-Drive Plugs

NPT Male

	Construction	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/2	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N42	00000


	3/4	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N43	0000
	1	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N44	0000
	1 1/4	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N45	0000
	2	Solid	150	Steel	150 psi @ 72° F	Not Rated	5245N46	00000

External-Square-Drive Plugs

NPT Male

	Construction	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/8	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N26	00000


	1/4	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N22	0000
	3/8	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N23	0000
	1/2	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N24	0000
	3/4	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N25	0000
	1	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N27	0000
	1 1/2	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N29	00000
	2	Solid	150	Square	Steel	150 psi @ 72° F	Not Rated	5245N31	00000
	2 1/2	Hollow	125	Square	Iron	150 psi @ 72° F	Not Rated	5374N39	00000
	3	Hollow	125	Square	Iron	150 psi @ 72° F	Not Rated	5374N41	00000
	4	Hollow	125	Square	Iron	150 psi @ 72° F	Not Rated	5374N42	00000

High-Pressure Iron and Steel Unthreaded Pipe Flanges

Forged for extra strength, these heavy duty flanges can withstand high-pressure applications. Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line.

Forged Blind Flanges


Front	Raised Surface on Back

Forged flanges have better strength than cast flanges.

						Bolt Hole
	Pipe Size	Dash Size	Flanged Connection Surface	Flange OD	For Bolt Dia.	Dia.	No. Of	Bolt Circle Dia.	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Flanged



		1/2	08	Raised	3 3/4"	1/2"	5/8"	4	2 5/8"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K349	000000


		3/4	12	Raised	4 5/8"	5/8"	3/4"	4	3 1/4"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K317	00000
		1	16	Raised	4 7/8"	5/8"	3/4"	4	3 1/2"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K318	00000
		1	16	Raised	4.88"	3/4"	3/4"	4	3 1/2"	600	Steel	1,400 psi @ 72° F	1,300 psi @ 300° F	6806K455	00000
		1 1/4	20	Raised	5 1/4"	5/8"	3/4"	4	3 7/8"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K319	00000
		1 1/2	24	Raised	6.12"	0.88"	0.88"	4	4 1/2"	600	Steel	1,400 psi @ 72° F	1,300 psi @ 300° F	6806K456	00000
		1 1/2	24	Raised	6 1/8"	3/4"	7/8"	4	4 1/2"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K321	00000
		2	32	Raised	6 1/2"	5/8"	3/4"	8	5"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K322	00000
		2	32	Raised	6 1/2"	3/4"	3/4"	8	5"	600	Steel	1,400 psi @ 72° F	1,300 psi @ 300° F	6806K457	00000
		2 1/2	40	Raised	7 1/2"	3/4"	7/8"	8	5 7/8"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K323	00000
		3	48	Raised	8 1/4"	3/4"	7/8"	8	6 5/8"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K324	00000


		3	48	Raised	8 1/4"	0.88"	0.88"	8	6.62"	600	Steel	1,400 psi @ 72° F	1,300 psi @ 300° F	6806K458	00000
		4	64	Raised	10"	3/4"	7/8"	8	7 7/8"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K325	00000
		4	64	Raised	10 3/4"	1"	1"	8	8 1/2"	600	Steel	1,400 psi @ 72° F	1,300 psi @ 300° F	6806K459	000000
		5	—	Raised	11"	3/4"	7/8"	8	9 1/4"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K347	000000
		6	96	Raised	12 1/2"	3/4"	7/8"	12	10 5/8"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K326	000000
		6	96	Raised	14"	1.12"	1.12"	12	11 1/2"	600	Steel	1,400 psi @ 72° F	1,300 psi @ 300° F	6806K461	000000
		8	—	Raised	15"	7/8"	1"	12	13"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K348	000000
		10	—	Raised	17 1/2"	1.12"	1.12"	16	15 1/4"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K419	000000
		12	—	Raised	20 1/2"	1 1/4"	1 1/4"	16	17 3/4"	300	Steel	600 psi @ 72° F	300 psi @ 300° F	6806K421	000000

High-Pressure Iron and Steel Threaded Pipe Fittings

These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.

Note: The maximum pressure listed for Class 3000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.

Caps

NPT Female

Zinc-Phosphate-Coated Steel—A phosphate coating offers some corrosion resistance, but these fittings aren't intended for corrosive environments.

	Dash Size	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Female



	1/8	02	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K281	00000


	1/4	04	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K81	0000
	3/8	06	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K82	0000
	1/2	08	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K83	0000
	3/4	12	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K84	0000
	1	16	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K85	0000
	1 1/4	20	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K86	00000
	1 1/2	24	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K87	00000
	2	32	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K88	00000
	2 1/2	40	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K282	00000
	3	48	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K283	000000


	4	64	3000	Zinc-Phosphate-Coated Steel	3,000 psi @ 72° F	300 psi @ 360° F	4513K284	000000

External-Hex-Drive Plugs

Male

Zinc-Phosphate-Coated Steel—A phosphate coating offers some corrosion resistance, but these fittings aren't intended for corrosive environments.

	Dash Size	Construction	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/8	02	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K321	00000


	1/4	04	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K322	0000
	3/8	06	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K323	0000
	1/2	08	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K324	0000
	3/4	12	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K325	0000
	1	16	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K326	0000
	1 1/4	20	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K327	0000
	1 1/2	24	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K328	0000
	2	32	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K329	00000
	2 1/2	40	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K331	00000
	3	48	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K332	00000


	4	64	Solid	6000	Hex	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K333	00000

External-Square-Drive Plugs

NPT Male

Zinc-Phosphate-Coated Steel—A phosphate coating offers some corrosion resistance, but these fittings aren't intended for corrosive environments.

	Dash Size	Construction	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male



	1/8	02	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K423	00000


	1/4	04	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K424	0000
	3/8	06	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K425	0000
	1/2	08	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K426	0000
	3/4	12	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K427	0000
	1	16	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K428	0000
	1 1/4	20	Hollow	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K429	0000
	1 1/2	24	Hollow	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K431	0000
	2	32	Hollow	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K432	00000
	2 1/2	40	Hollow	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K433	00000
	3	48	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K434	00000


	4	64	Solid	6000	Square	Zinc-Phosphate-Coated Steel	6,000 psi @ 72° F	300 psi @ 360° F	4513K435	00000

Medium-Pressure Iron and Steel Threaded Pipe Fittings

With better strength than our low-pressure iron and steel pipe fittings, these can handle medium-pressure applications. They are for use in noncorrosive environments.

Caps

NPT Female

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



	1/4	300	Iron	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K171	000000


	3/8	300	Iron	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K172	00000
	1/2	300	Iron	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K173	00000
	3/4	300	Iron	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K174	00000
	1	300	Iron	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K275	00000
	1 1/4	300	Iron	1,500 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K276	00000
	1 1/2	300	Iron	1,500 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K277	00000
	2	300	Iron	1,500 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K278	00000
	2 1/2	300	Iron	1,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K409	000000
	3	300	Iron	1,000 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K411	000000

Hex-Drive Plugs

Male

NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.

	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each
NPT Male



	1/4	300	Steel	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	6367N14	00000


	3/8	300	Steel	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	6367N15	0000
	1/2	300	Steel	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	6367N16	0000
	3/4	300	Steel	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	6367N17	0000
	1	300	Steel	2,000 psi @ 72° F	300 psi @ 550° F	UL Listed	6367N18	0000
	1 1/2	300	Steel	1,500 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K413	00000
	2	300	Steel	1,500 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K414	00000


	NPTF Male



			1 1/4	300	Steel	300 psi @ 72° F	300 psi @ 550° F	—	4627K417	0000

External-Square-Drive Plugs

NPT Male

	Construction	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.	Certification		Each
NPT Male



	1/8	Solid	300	Square	Steel	400 psi @ 72° F	300 psi @ 550° F	—	6367N11	00000


	1/4	Solid	300	Square	Steel	400 psi @ 72° F	300 psi @ 550° F	—	6367N12	0000
	3/8	Solid	300	Square	Steel	400 psi @ 72° F	300 psi @ 550° F	—	6367N13	0000
	1/2	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K333	0000
	3/4	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K334	0000
	1	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K335	0000
	1 1/4	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K336	00000
	1 1/2	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K337	00000
	2	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K338	00000
	2 1/2	Solid	300	Square	Iron	400 psi @ 72° F	300 psi @ 550° F	UL Listed	4627K416	00000

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.

Bushing Straight Reducing Adapters


Male x Female	Male x Female

	Pipe Size
	(A)	(B)	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Male × NPT Female



		1 1/4	3/8	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K061	00000


		1 1/2	3/8	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K063	00000
		1 1/2	1/2	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K062	0000
		2	1/2	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K064	00000
		2	3/4	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K065	00000
		2 1/2	1 1/2	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K058	00000
		3	2	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K059	00000
		3	2 1/2	125	Hex	Galvanized Iron	125 psi @ 72° F	125 psi @ 350° F	4638K06	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



	1 1/2	Galvanized Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	4638K556	0000000


	2	Galvanized Iron	150 psi @ 72° F	150 psi @ 350° F	UL Listed	180° Bend	4638K557	000000

Locknuts

NPSL Thread—NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.

	Finished Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPSL Female



	1 1/4	Galvanized Iron	Not Rated	Not Rated	4638K617	000000


	1 1/2	Galvanized Iron	Not Rated	Not Rated	4638K618	00000
	2	Galvanized Iron	Not Rated	Not Rated	4638K619	00000