ASME B16.11 Pipe Plugs | McMaster-Carr

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REACH

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

Yes

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

RoHS

191 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

Cap

Cover a pipe end to seal it

95 products

Plug

Insert into a pipe end to seal it

96 products

Performance

Chemical Resistant

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

43 products

Corrosion Resistant

Withstand exposure to moisture and mild chemicals

82 products

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

High-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings better corrosion resistance than our plain steel high-pressure fittings. Also known as Pressure Class 3000 fittings, they have excellent strength to handle high-pressure applications.

Caps

Female

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



	1/8	02	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K161	00000


	1/4	04	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K162	0000
	3/8	06	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K163	0000
	1/2	08	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K164	0000
	3/4	12	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K165	0000
	1	16	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K166	00000
	1 1/4	20	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K167	00000
	1 1/2	24	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K168	00000
	2	32	3000	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K169	00000

External-Hex-Drive Plugs

Male

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



	1/8	02	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K181	00000


	1/4	04	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K182	0000
	3/8	06	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K183	0000
	1/2	08	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K184	0000
	3/4	12	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K185	0000
	1	16	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K186	0000
	1 1/4	20	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K187	0000
	1 1/2	24	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K188	00000
	2	32	Solid	3000	Hex	Galvanized Steel	3,000 psi @ 72° F	300 psi @ 360° F	7739K189	00000

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a _1/4-turn past hand tight.

Hex-Drive Plugs

Male

Anodized 2011 Aluminum—Anodized and powder-coated fittings have a decorative matte black finish.

	Dash Size	Construction	Pressure Class	Material	Color	Max. Pressure @ Temp.	Mil. Spec.		Each
NPT Male



	1/16	—	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T361	00000


	1/8	02	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T362	0000
	1/4	04	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T363	0000
	3/8	06	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T364	0000
	1/2	08	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T365	00000
	3/4	12	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T366	00000
	1	16	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T367	00000
	1 1/4	20	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T368	00000


	BSPT Male



			1/8	02	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T369	0000


			1/4	04	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T371	0000
			3/8	06	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T372	0000
			1/2	08	Solid	150	Anodized 2011 Aluminum	Black	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T373	00000

External-Hex-Drive Plugs

Male

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



	1/16	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Fed. Spec. QQ-A-200/8	3867T378	00000

External-Hex-Drive Plugs with Gasket

Male

	Dash Size	Construction	Pressure Class	Body Shape	Material	Max. Pressure @ Temp.	Gasket Material	Mil. Spec.		Each
UNF Male



	10-32	—	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T379	00000


	7/16"-20	06	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T382	0000
	9/16"-18	04	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T381	0000
	3/4"-16	08	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T383	0000


	Metric Male



			M3 × 0.5 mm	—	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T374	0000


			M6 × 1 mm	—	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T375	0000
			M10 × 1.25 mm	—	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T376	0000
			M12 × 1.25 mm	—	Solid	150	Hex	6061 Aluminum	150 psi @ 72° F	Buna-N	Fed. Spec. QQ-A-200/8	3867T377	0000

180° Bend Connectors

Image of Product. Front orientation. Pipe Traps. Low-Pressure Aluminum Threaded Pipe Fittings.

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

	Material	Max. Pressure @ Temp.	Shape		Each
NPT Female



	1/2	356 Aluminum	150 psi @ 72° F	180° Bend	44705K479	000000


	3/4	356 Aluminum	150 psi @ 72° F	180° Bend	44705K481	00000
	1	356 Aluminum	150 psi @ 72° F	180° Bend	44705K482	00000

Locknuts

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

	Finished Material	Max. Pressure @ Temp.		Each
NPSL Female



	1/4	6061 Aluminum	150 psi @ 72° F	44705K412	00000


	3/8	6061 Aluminum	150 psi @ 72° F	44705K413	0000
	1/2	356 Aluminum	150 psi @ 72° F	44705K414	0000
	3/4	356 Aluminum	150 psi @ 72° F	44705K415	00000
	1	356 Aluminum	150 psi @ 72° F	44705K416	00000
	1 1/4	356 Aluminum	150 psi @ 72° F	44705K417	00000

Extreme-Pressure Iron and Steel Threaded Pipe Fittings

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

Note: The maximum pressure listed for Class 6000 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

Female

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



	1/4	04	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K51	000000


	3/8	06	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K52	00000
	1/2	08	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K83	00000
	3/4	12	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K84	00000
	1	16	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K85	00000
	1 1/4	20	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K116	00000
	1 1/2	24	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K87	00000
	2	32	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43455K88	00000

Plugs

Male

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



	1/4	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K82	000000


	3/8	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K83	00000
	1/2	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K84	00000
	3/4	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K85	00000
	1	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K86	00000
	1 1/4	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K87	00000
	1 1/2	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K88	00000
	2	6000	Round	Steel	6,000 psi @ 72° F	Not Rated	4534K89	00000

External-Hex-Drive Plugs

Male

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



	1/4	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K72	000000


	3/8	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K73	00000
	1/2	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K74	00000
	3/4	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K75	00000
	1	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K76	00000
	1 1/4	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K77	00000
	1 1/2	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K78	00000
	2	6000	Hex	Steel	6,000 psi @ 72° F	Not Rated	4534K79	000000

Locknuts

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



	1/4	04	Zinc-Yellow-Chromate-Plated Steel	PTFE	10,000 psi @ 72° F	5,000 psi @ 500° F	5530K16	000000


	3/8	06	Zinc-Yellow-Chromate-Plated Steel	PTFE	10,000 psi @ 72° F	5,000 psi @ 500° F	5530K18	00000
	1/2	08	Zinc-Yellow-Chromate-Plated Steel	PTFE	10,000 psi @ 72° F	5,000 psi @ 500° F	5530K19	00000
	3/4	12	Zinc-Yellow-Chromate-Plated Steel	PTFE	5,000 psi @ 72° F	5,000 psi @ 500° F	5530K21	00000
	1	16	Zinc-Yellow-Chromate-Plated Steel	PTFE	5,000 psi @ 72° F	5,000 psi @ 500° F	5530K23	00000
	1 1/4	20	Zinc-Yellow-Chromate-Plated Steel	PTFE	5,000 psi @ 72° F	5,000 psi @ 500° F	5530K25	00000
	1 1/2	24	Zinc-Yellow-Chromate-Plated Steel	PTFE	3,000 psi @ 72° F	5,000 psi @ 500° F	5530K27	00000
	2	32	Zinc-Yellow-Chromate-Plated Steel	PTFE	3,000 psi @ 72° F	5,000 psi @ 500° F	5530K29	000000

High-Pressure Titanium Threaded Pipe Fittings

Titanium has similar strength to steel, but is approximately 40% lighter. It has better corrosion resistance than most stainless steel alloys and can handle corrosive substances, such as salt water and acids.

External-Hex-Drive Plugs

Male

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



	1/4	Solid	Hex	Titanium	3,000 psi @ 72° F	1961K11	000000


	3/8	Solid	Hex	Titanium	3,000 psi @ 72° F	1961K12	00000
	1/2	Solid	Hex	Titanium	3,000 psi @ 72° F	1961K13	00000
	3/4	Solid	Hex	Titanium	3,000 psi @ 72° F	1961K14	00000
	1	Solid	Hex	Titanium	3,000 psi @ 72° F	1961K15	000000

External-Square-Drive Plugs

Male

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



	1/4	Solid	Square	Titanium	3,000 psi @ 72° F	1961K16	000000


	3/8	Solid	Square	Titanium	3,000 psi @ 72° F	1961K17	00000
	1/2	Solid	Square	Titanium	3,000 psi @ 72° F	1961K18	00000
	3/4	Solid	Square	Titanium	3,000 psi @ 72° F	1961K19	000000

High-Pressure Stainless Steel Threaded Pipe Fittings

Use these heavy duty fittings in high-pressure flow applications.

Caps

Female

304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.

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.

				304 Stainless Steel				316 Stainless Steel
	Pipe Size	Dash Size	Pressure Class	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
NPT Female



		1/8	02	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K581	000000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K681	000000


		1/4	04	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K582	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K682	00000
		3/8	06	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K583	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K683	00000
		1/2	08	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K584	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K684	00000
		3/4	12	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K585	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K685	00000
		1	16	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K586	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K686	00000
		1 1/4	20	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K587	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K687	00000
		1 1/2	24	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K588	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K688	00000
		2	32	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K589	00000	3,000 psi @ 72° F	2,800 psi @ 350° F	4443K689	000000
		2 1/2	40	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K181	000000	—	—	———	0
		3	48	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	45525K182	000000	—	—	———	0

High-Pressure Iron and Steel Socket-Connect Pipe Fittings

Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection. Fittings have heavy duty construction that stands up to high-pressure applications. They are for use in noncorrosive environments.

Caps

Socket Connect

F22 Chrome-Moly Steel—F22 chrome-moly steel is stronger and easier to weld than plain steel. It resists scaling even in steam applications.

	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect



	1/8	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K231	000000


	1/4	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K232	0000
	3/8	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K233	0000
	1/2	3000	F22 Chrome-Moly Steel	2,300 psi @ 72° F	1,500 psi @ 350° F	1982K22	00000
	1/2	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K234	0000
	3/4	3000	F22 Chrome-Moly Steel	2,300 psi @ 72° F	1,500 psi @ 350° F	1982K23	00000
	3/4	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K235	0000
	1	3000	F22 Chrome-Moly Steel	2,300 psi @ 72° F	1,500 psi @ 350° F	1982K24	00000
	1	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K236	0000
	1 1/4	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K237	0000
	1 1/2	3000	F22 Chrome-Moly Steel	2,300 psi @ 72° F	1,500 psi @ 350° F	1982K25	00000


	1 1/2	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K238	00000
	2	3000	F22 Chrome-Moly Steel	2,300 psi @ 72° F	1,500 psi @ 350° F	1982K26	000000
	2	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K239	00000
	2 1/2	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K241	000000
	3	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K242	00000
	4	3000	Steel	3,000 psi @ 72° F	Not Rated	45005K243	000000

High-Pressure Stainless Steel Socket-Connect Pipe Fittings

Forged for excellent strength, these heavy duty socket-connect fittings stand up to high-pressure applications. They are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection.

Caps

Female

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

316/316L 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.

				304/304L Stainless Steel				316/316L Stainless Steel
	Pipe Size	Dash Size	Pressure Class	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect



		1/8	02	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K461	000000	—	—	———	0


		1/4	04	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K462	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K222	000000
		3/8	06	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K463	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K223	00000
		1/2	08	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K464	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K224	00000
		3/4	12	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K465	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K225	00000
		1	16	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K466	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K226	00000
		1 1/2	24	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K468	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K228	00000
		2	32	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K469	00000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K229	000000
		3	48	3000	2,500 psi @ 72° F	1,900 psi @ 350° F	44965K47	000000	3,000 psi @ 72° F	1,900 psi @ 350° F	45515K23	000000

Extreme-Pressure Iron and Steel Socket-Connect Pipe Fittings

Also known as Pressure Class 6000 fittings, these heavy duty forged fittings are the strongest steel fittings we offer. They are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection. Fittings are for use in noncorrosive environments.

Caps

Socket Connect

	Dash Size	Pressure Class	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect



	1/2	08	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43665K234	000000


	3/4	12	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43665K235	00000
	1	16	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43665K236	00000
	1 1/4	20	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43665K237	00000
	1 1/2	24	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43665K238	00000
	2	32	6000	Steel	6,000 psi @ 72° F	300 psi @ 360° F	43665K239	00000

Extreme-Pressure Stainless Steel Socket-Connect Pipe Fittings

The strongest socket-connect fittings we offer, these heavy duty forged fittings are also known as Pressure Class 6000. They are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection.

Caps

Socket Connect

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

				304/304L Stainless Steel				316/316L Stainless Steel
	Pipe Size	Pressure Class	Pipe Schedule	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Socket Connect



		1/2	6000	160	7,700 psi @ 72° F	6,500 psi @ 220° F	2064K33	000000	—	—	———	0


		3/4	6000	160	7,100 psi @ 72° F	5,900 psi @ 220° F	2064K34	00000	7,100 psi @ 72° F	5,900 psi @ 220° F	2077K34	000000
		1	6000	160	6,400 psi @ 72° F	5,300 psi @ 220° F	2064K35	00000	6,400 psi @ 72° F	5,300 psi @ 220° F	2077K35	000000
		2	6000	160	4,700 psi @ 72° F	3,900 psi @ 220° F	2064K37	000000	—	—	———	0