Pipe And Fittings For Hydraulic Fluid (petroleum Based)

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Hydraulic Fluid (Petroleum Based)

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74 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 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

Straight Adapters with Gasket


Female x Male	Male 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


		NPTF Male × UN/UNF (SAE Straight) Male



				1/4	—	—	9/16"-18	04	06	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K256	000000


				3/8	—	—	9/16"-18	06	06	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K257	00000
				3/8	—	—	3/4"-16	06	08	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K258	000000
				1/2	—	—	3/4"-16	08	08	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K259	00000
				3/4	—	—	1 1/16"-12	12	12	Hex	Fluoroelastomer	6,000 psi @ 72° F	51205K262	000000
				1	—	—	1 5/16"-12	16	16	Hex	Fluoroelastomer	5,400 psi @ 72° F	51205K263	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


								UN/UNF (SAE Straight) Female × Metric Male



										—	—	7/16"-20	M10 × 1 mm	04	—	Hex	Buna-N	5,000 psi @ 72° F	51205K781	00000


										—	—	9/16"-18	M14 × 1.5 mm	06	—	Hex	Buna-N	5,000 psi @ 72° F	51205K783	00000
										—	—	3/4"-16	M16 × 1.5 mm	08	—	Hex	Buna-N	5,000 psi @ 72° F	51205K784	00000
										—	—	3/4"-16	M18 × 1.5 mm	08	—	Hex	Buna-N	3,500 psi @ 72° F	51205K785	000000
										—	—	7/8"-14	M22 × 1.5 mm	10	—	Hex	Buna-N	3,500 psi @ 72° F	51205K786	00000
										—	—	1 5/16"-12	M33 × 2 mm	16	—	Hex	Buna-N	3,000 psi @ 72° F	51205K788	000000


Metric Female × UN/UNF (SAE Straight) Male



										—	—	M10 × 1 mm	7/16"-20	—	04	Hex	Buna-N	6,000 psi @ 72° F	51205K761	00000


										—	—	M12 × 1.5 mm	7/16"-20	—	04	Hex	Buna-N	6,000 psi @ 72° F	51205K762	00000
										—	—	M14 × 1.5 mm	9/16"-18	—	06	Hex	Buna-N	6,000 psi @ 72° F	51205K763	00000
										—	—	M16 × 1.5 mm	3/4"-16	—	08	Hex	Buna-N	6,000 psi @ 72° F	51205K765	00000
										—	—	M18 × 1.5 mm	3/4"-16	—	08	Hex	Buna-N	6,000 psi @ 72° F	51205K766	00000
										—	—	M22 × 1.5 mm	7/8"-14	—	10	Hex	Buna-N	5,000 psi @ 72° F	51205K767	000000

External-Hex-Drive Plugs with Gasket

Male

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.

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



		3/8"-24	03	Hollow	Hex	Fluoroelastomer	9,000 psi @ 72° F	51205K286	000000


		7/16"-20	04	Hollow	Hex	Fluoroelastomer	9,000 psi @ 72° F	51205K287	00000
		1/2"-20	05	Hollow	Hex	Fluoroelastomer	7,200 psi @ 72° F	51205K288	00000
		9/16"-18	06	Hollow	Hex	Fluoroelastomer	7,200 psi @ 72° F	51205K289	00000
		3/4"-16	08	Hollow	Hex	Fluoroelastomer	7,200 psi @ 72° F	51205K291	00000
		7/8"-14	10	Hollow	Hex	Fluoroelastomer	7,200 psi @ 72° F	51205K292	00000
		1 1/16"-12	12	Hollow	Hex	Fluoroelastomer	7,200 psi @ 72° F	51205K293	00000
		1 5/16"-12	16	Hollow	Hex	Fluoroelastomer	6,600 psi @ 72° F	51205K294	000000

Locknuts

					303 Stainless Steel
	Pipe Size	Dash Size	Gasket Material	Max. Pressure @ Temp.		Each
NPT Female



		1/4	04	PTFE	10,000 psi @ 72° F	5530K38	000000


		3/8	06	PTFE	10,000 psi @ 72° F	5530K39	00000
		1/2	08	PTFE	10,000 psi @ 72° F	5530K44	00000
		3/4	12	PTFE	5,000 psi @ 72° F	5530K45	000000
		1	16	PTFE	5,000 psi @ 72° F	5530K46	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

Pressure Test Fittings

Steel

Check pressure without permanently installing a gauge. Fittings have an NPT male connection for installation in your pipe or tank. Wrench-tighten the fitting onto your equipment, then insert the gauge adapter (sold separately) into the fitting. Connect gauge adapters to gauges with _1/4 pipe size NPT male threads.

	Plugs								Gauge Adapters
	Pipe Size	Thread Size	Max. Pressure, psi	Gasket Material	Ht.	For Use With		Each		Each
NPT Male × Metric Male Plug







				Steel

				1/8	M16 × 2 mm	5,800	Fluoroelastomer	1 1/2"	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Water	3194K55	000000	3194K59	000000


				1/4	M16 × 2 mm	5,800	Fluoroelastomer	1 1/2"	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Water	3194K56	00000	3194K59	00000

Quick-Install Pressure Test Fittings

Thread these fittings onto your testing equipment by hand for a secure connection in testing applications—no tools, tape, or sealant required. Use them with gauges and other equipment as a temporary connection. When pressure is applied, the O-ring on the outlet presses against the testing equipment, creating a tight seal.

Intermittent Swivel—Adapters with intermittent swivel rotate 360° until tightened for easy installation.

	Max. Pressure, psi	Temp. Range, ° F	Gasket Material	For Use With		Each
NPT Female Inlet × NPT Male Outlet Adapter with Intermittent Swivel







			416 Stainless Steel

			1/8	5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K71	0000000


			1/4	5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K72	000000
			3/8	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K73	000000
			1/2	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K74	000000
			3/4	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K75	000000
			1	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K81	000000


			NPT Male Inlet × NPT Female Outlet Adapter







							416 Stainless Steel

							1/8	5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K21	000000


							1/4	5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K22	000000
							3/8	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K23	000000
							1/2	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K24	000000
							3/4	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K25	000000
							1	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K26	000000


							NPT Male Inlet × NPT Female Outlet Adapter with Intermittent Swivel







											416 Stainless Steel

											1/8	5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K31	000000


											1/4	5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K32	000000
											3/8	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K33	000000
											1/2	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K34	000000
											3/4	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K35	000000
											1	4,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K36	000000


											NPT Male Inlet Plug







													416 Stainless Steel

	1/8												5,000	-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K11	000000


	1/4	5,000											-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K12	000000
	3/8	4,000											-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K13	000000
	1/2	4,000											-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K14	000000
	3/4	4,000											-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K15	000000
	1	4,000											-65 to 212	Polyurethane Rubber	Air, Argon, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Hydraulic Fluid (Petroleum Based), Natural Gas, Nitrogen, Oxygen, Water	2438K16	000000