ISO 8434-1 Pipe And Fittings

Filter by

Product Family

Pipe and Fittings

System of Measurement

Thread Size

Thread Type

UN/UNF (SAE Straight)

Fitting Type

Pipe Size

Gender

Material

Dash Size

Thread Pitch

Shape

Maximum Pressure @ Temperature

For Use With

Hydraulic Fluid (Petroleum Based)

Fitting Connection

Connects To

Hex Width

Pressure Rating

Body Shape

Threading

Threaded on Both Ends

Fabrication

Machined

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

Length

REACH

Export Control Classification Number (ECCN)

2B999

EAR99

RoHS

Compliant

DFARS Specialty Metals

Exempt

Forward

How can we improve?

37 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.

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.

Straight Adapters with Gasket

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

	Thread Size (B)	Dash Size (A)	Body Shape	Material	Max. Pressure @ Temp.	Gasket Material		Each
NPT Female × Metric Male
Female x Male


	1/4	M12 × 1.5 mm	04	Hex	Zinc-Plated Steel	4,500 psi @ 72° F	Buna-N	4936K154	00000


	1/4	M14 × 1.5 mm	04	Hex	Zinc-Plated Steel	4,500 psi @ 72° F	Buna-N	4936K155	0000
	3/8	M16 × 1.5 mm	06	Hex	Zinc-Plated Steel	4,000 psi @ 72° F	Buna-N	4936K156	0000
	3/8	M18 × 1.5 mm	06	Hex	Zinc-Plated Steel	4,000 psi @ 72° F	Buna-N	4936K157	0000
	1/2	M18 × 1.5 mm	08	Hex	Zinc-Plated Steel	3,500 psi @ 72° F	Buna-N	4936K159	0000
	1/2	M22 × 1.5 mm	08	Hex	Zinc-Plated Steel	3,500 psi @ 72° F	Buna-N	4936K452	00000


	NPT Male × Metric Male
	Male x Male


			1/8	M12 × 1.5 mm	02	Hex	Zinc-Plated Steel	5,000 psi @ 72° F	Buna-N	4936K765	00000


			1/4	M10 × 1 mm	04	Hex	Zinc-Plated Steel	6,000 psi @ 72° F	Buna-N	4936K766	00000
			1/4	M14 × 1.5 mm	04	Hex	Zinc-Plated Steel	6,000 psi @ 72° F	Buna-N	4936K767	00000
			3/8	M18 × 1.5 mm	06	Hex	Zinc-Plated Steel	5,500 psi @ 72° F	Buna-N	4936K768	00000
			1/2	M22 × 1.5 mm	08	Hex	Zinc-Plated Steel	4,500 psi @ 72° F	Buna-N	4936K769	00000

Replacement Washers

	ID, mm	OD, mm	Thk., mm		Each
For Metric Male



	M10	8.56	15.88	2	4936K647	00000


	M12	9.73	18	1.5	4936K648	0000
	M14	11.38	21	1.5	4936K649	0000
	M16	13.41	24	1.5	4936K651	0000
	M18	14.76	26	1.5	4936K652	0000
	M22	18.74	30	2	4936K654	0000

Extreme-Pressure Stainless Steel Threaded Pipe Fittings

With the strength to handle extreme pressures, these fittings can be used to connect equipment in hydraulic fluid lines.

Straight Adapters

Female x Male

UN/UNF (SAE Straight) Thread—Also known as O-ring boss threads.

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.

			Dash Size			316 Stainless Steel
	Thread Size (A)	Pipe Size (B)	(A)	(B)	Body Shape	Max. Pressure @ Temp.		Each
UN/UNF (SAE Straight) Female × BSPT Male



		7/16"-20	1/8	04	02	Hex	6,000 psi @ 72° F	51205K822	000000


		1/2"-20	1/8	05	02	Hex	6,000 psi @ 72° F	51205K823	00000
		3/4"-16	3/8	08	06	Hex	5,000 psi @ 72° F	51205K825	00000
		7/8"-14	1/2	10	08	Hex	4,500 psi @ 72° F	51205K826	00000
		1 1/16"-12	3/4	12	12	Hex	4,500 psi @ 72° F	51205K827	000000

Straight Adapters with Gasket

Female x Male

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

UN/UNF (SAE Straight) Thread—Also known as O-ring boss threads.

Fluoroelastomer—These gaskets resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol.

	Pipe Size		Thread Size		Dash Size				316 Stainless Steel
	(A)	(B)	(A)	(B)	(A)	(B)	Body Shape	Gasket Material	Max. Pressure @ Temp.		Each
NPTF Female × UN/UNF (SAE Straight) Male



		1/4	—	—	7/16"-20	04	04	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K265	0000000


		1/4	—	—	9/16"-18	04	06	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K266	00000
		1/4	—	—	3/4"-16	04	08	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K268	000000
		3/8	—	—	9/16"-18	06	06	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K267	000000
		3/8	—	—	3/4"-16	06	08	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K269	000000
		1/2	—	—	3/4"-16	08	08	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K271	000000


		BSPP Female × UN/UNF (SAE Straight) Male



				1/4	—	—	7/16"-20	04	04	Hex	Buna-N	6,000 psi @ 72° F	51205K771	00000


				1/4	—	—	9/16"-18	04	06	Hex	Buna-N	6,000 psi @ 72° F	51205K772	00000
				1/4	—	—	3/4"-16	04	08	Hex	Buna-N	6,000 psi @ 72° F	51205K774	00000


				UN/UNF (SAE Straight) Female × BSPP Male



						—	1/4	7/16"-20	—	04	04	Hex	Buna-N	5,000 psi @ 72° F	51205K812	00000


						—	3/8	7/16"-20	—	04	06	Hex	Buna-N	5,000 psi @ 72° F	51205K814	00000
						—	3/8	1/2"-20	—	05	06	Hex	Buna-N	5,000 psi @ 72° F	51205K815	00000
						—	3/8	3/4"-16	—	08	06	Hex	Buna-N	5,000 psi @ 72° F	51205K817	00000
						—	3/4	1 1/16"-12	—	12	12	Hex	Buna-N	3,500 psi @ 72° F	51205K819	000000

High-Pressure Stainless Steel Threaded Pipe Fittings

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

Straight Adapters with Gasket

Female x Male

UN/UNF (SAE Straight) Thread—Also known as O-ring boss threads.

	Thread Size					316 Stainless Steel
	(A)	(B)	Dash Size (A)	Body Shape	Gasket Material	Max. Pressure @ Temp.		Each
UN/UNF (SAE Straight) Female × Metric Male



		1 5/8"-12	M42 × 2 mm	20	Hex	Buna-N	2,000 psi @ 72° F	51205K789	0000000