UN/UNF (JIC) Valves | McMaster-Carr

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Fitting Connection

Thread Type

UN/UNF (SAE Straight)

UNJ/UNJF (SAE Straight)

Shape

Fitting Type

System of Measurement

Thread Size

Gender

Material

For Use With

Tube OD

Connects To

Pipe Size

Maximum Pressure

3,000 psi to 3,999 psi

4,000 psi or greater

Dash Size

For Use On

High-Pressure Fill Valves

Body Material

316 Stainless Steel

Steel

Maximum Pressure @ Temperature

Connection Port

Minimum Opening Pressure

2 psi

5 psi

RoHS

Compliant

Compliant with Exemptions

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

Flow Control Type

34 Products

Air Chucks for High-Pressure Fill Valves

Fill tanks and recharge struts—these air chucks join hose to high-pressure fill valves with Schrader threads.

Schrader Female Threaded Hose × UN/UNF (JIC) Male 37° Flared Tube


Straight	70° Elbow	90° Elbow With Shutoff

70° Elbow—70° elbow chucks are angled to access hard-to-reach valves.

With Shutoff—Chucks with a shut-off valve let you control the flow of air by hand. When used with Schrader valves that have a core, the core depressor pin in these chucks press valves open to let air flow in.

SAE AS4395—These chucks meet SAE AS4395, an automotive industry standard for flared fitting dimensions.

	Inlet		Outlet				Temp. Range, ° F
	Thread Size	Material	Thread Size	Material	For Tube OD	Max. Pressure, psi	Min.	Max.	Features	Specs. Met		Each
Straight



		0.305"-32	Zinc-Plated Steel	7/16"-20	Stainless Steel	1/4"	5,000	-20	250	—	SAE AS4395	3534N3	000000


		70° Elbow



				0.305"-32	Brass	7/16"-20	Brass	1/4"	5,000	Not Rated	Not Rated	—	—	3534N6	00000


				90° Elbow With Shutoff



						0.305"-32	Brass	3/8"-24	Brass	3/16"	3,000	-40	160	Core Depressor Pin	SAE AS4395	3534N2	00000


						0.485"-26	Brass	3/8"-24	Brass	3/16"	3,000	-40	160	Core Depressor Pin	—	3534N5	00000

Threaded Check Valves

These valves open to allow flow in one direction and close when flow stops or reverses.

Adapters, NPT Male Inlet × 37° UN/UNF (JIC) Male Outlet


Male Inlet × Male Outlet	Flared Angle Adapter

316 Stainless Steel Body—316 stainless steel valves have the best corrosion resistance.

Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

	Outlet Thread Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	End-to-End Lg.	For Use With	Spring Material	Seal Material		Each
316 Stainless Steel Body—Fluoroelastomer Spring-Loaded Piston



	1/4	7/16"-20	1.1	3,000 psi @ 70° F	2	-5 to 350	3 11/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N54	000000


	3/8	9/16"-18	3.1	3,000 psi @ 70° F	2	-5 to 350	3 11/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N55	00000
	1/2	3/4"-16	3.8	3,000 psi @ 70° F	2	-5 to 350	3 13/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N56	00000
	3/4	1 1/16"-12	7.4	3,000 psi @ 70° F	2	-5 to 350	4"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N57	00000
	1	1 5/16"-12	11.2	3,000 psi @ 70° F	2	-5 to 350	4 5/8"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N58	000000

Connectors, 37° UN/UNF (JIC) Male Inlet × 37° UN/UNF (JIC) Male Outlet


Male Inlet × Male Outlet	Flared Angle Connector

316 Stainless Steel Body—316 stainless steel valves have the best corrosion resistance.

	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	Spring Material	Seal Material	End-to-End Lg.	For Use With		Each
316 Stainless Steel Body—Fluoroelastomer Spring-Loaded Piston



	7/16"-20	1.1	3,000 psi @ 70° F	2	-5 to 350	316 Stainless Steel	Fluoroelastomer	3 9/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	1874N43	000000


	9/16"-18	3.1	3,000 psi @ 70° F	2	-5 to 350	316 Stainless Steel	Fluoroelastomer	3 9/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	1874N44	00000
	3/4"-16	3.8	3,000 psi @ 70° F	2	-5 to 350	316 Stainless Steel	Fluoroelastomer	3 3/4"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	1874N45	00000
	1 5/16"-12	11.2	3,000 psi @ 70° F	2	-5 to 350	316 Stainless Steel	Fluoroelastomer	4 7/8"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	1874N47	000000

Adapters, 37° UN/UNF (JIC) Male Inlet × NPT Male Outlet


Male Inlet × Male Outlet	Flared Angle Adapter

316 Stainless Steel Body—316 stainless steel valves have the best corrosion resistance.

	Outlet Pipe Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Min. Opening Pressure, psi	Temp. Range, ° F	End-to-End Lg.	For Use With	Spring Material	Seal Material		Each
316 Stainless Steel Body—Fluoroelastomer Spring-Loaded Piston



	7/16"-20	1/4	1.1	3,000 psi @ 70° F	2	-5 to 350	3 11/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N48	000000


	9/16"-18	3/8	3.1	3,000 psi @ 70° F	2	-5 to 350	3 11/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N49	00000
	3/4"-16	1/2	3.8	3,000 psi @ 70° F	2	-5 to 350	3 13/16"	Air, Argon, Helium, Krypton, Neon, Water, Xenon	316 Stainless Steel	Fluoroelastomer	1874N51	00000

Inline Hydraulic Check Valves

Hydraulic check valves open to allow flow in one direction and close when flow stops or reverses.

UN/UNF (SAE Straight) Male Inlet × UN/UNF (JIC) Male Outlet—Poppet Check Valve

UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.

Valves with a poppet have internal components that can handle any flow rates. The higher the flow rate of the hydraulic fluid coming into the valve, the lower the pressure the fluid is as it leaves the valve.

	Inlet Connection		Outlet Connection
	Thread Size	Dash Size	Thread Size	Dash Size	Fitting Connection	Max. Flow Rate	Flow Coefficient (Cv)	Max. Pressure, psi	Min. Opening Pressure, psi	Seal Material	Port-to-Port Lg.	Hex Wd.	Mounting Position	Temp. Range, ° F		Each
Steel Body



		7/16"-20	04	7/16"-20	04	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 1/4"	9/16"	Any Angle	-40 to 250	2300N39	000000


		9/16"-18	06	9/16"-18	06	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 1/4"	3/4"	Any Angle	-40 to 250	2300N41	00000
		3/4"-16	08	3/4"-16	08	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 5/8"	7/8"	Any Angle	-40 to 250	2300N42	00000
		7/8"-14	10	7/8"-14	10	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 7/8"	1"	Any Angle	-40 to 250	2300N43	000000
		1 1/16"-12	12	1 1/16"-12	12	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	2 1/8"	1 1/4"	Any Angle	-40 to 250	2300N44	000000
		1 5/16"-12	16	1 5/16"-12	16	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	2 1/2"	1 1/2"	Any Angle	-40 to 250	2300N45	000000

UN/UNF (JIC) Male Inlet × UN/UNF (SAE Straight) Male Outlet—Poppet Check Valve

UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.

	Inlet Connection			Outlet Connection
	Thread Size	Dash Size	Fitting Connection	Thread Size	Dash Size	Max. Flow Rate	Flow Coefficient (Cv)	Max. Pressure, psi	Min. Opening Pressure, psi	Seal Material	Port-to-Port Lg.	Hex Wd.	Mounting Position	Temp. Range, ° F		Each
Steel Body



		7/16"-20	04	37° Flared	7/16"-20	04	Not Rated	Not Rated	5,000	5	Buna-N	1 1/4"	9/16"	Any Angle	-40 to 250	2300N18	000000


		9/16"-18	06	37° Flared	9/16"-18	06	Not Rated	Not Rated	5,000	5	Buna-N	1 1/4"	3/4"	Any Angle	-40 to 250	2300N19	00000
		3/4"-16	08	37° Flared	3/4"-16	08	Not Rated	Not Rated	5,000	5	Buna-N	1 5/8"	7/8"	Any Angle	-40 to 250	2300N21	00000
		7/8"-14	10	37° Flared	7/8"-14	10	Not Rated	Not Rated	5,000	5	Buna-N	1 7/8"	1"	Any Angle	-40 to 250	2300N22	000000
		1 1/16"-12	12	37° Flared	1 1/16"-12	12	Not Rated	Not Rated	5,000	5	Buna-N	2 1/8"	1 1/4"	Any Angle	-40 to 250	2300N23	000000
		1 5/16"-12	16	37° Flared	1 5/16"-12	16	Not Rated	Not Rated	5,000	5	Buna-N	2 1/2"	1 1/2"	Any Angle	-40 to 250	2300N24	000000

UN/UNF (JIC) Male Inlet × UN/UNF (JIC) Male Outlet—Poppet Check Valve

	Inlet Connection			Outlet Connection
	Thread Size	Dash Size	Fitting Connection	Thread Size	Dash Size	Fitting Connection	Max. Flow Rate	Flow Coefficient (Cv)	Max. Pressure, psi	Min. Opening Pressure, psi	Seal Material	Port-to-Port Lg.	Hex Wd.	Mounting Position	Temp. Range, ° F		Each
Steel Body



		7/16"-20	04	37° Flared	7/16"-20	04	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 1/2"	9/16"	Any Angle	-40 to 250	2300N11	000000


		9/16"-18	06	37° Flared	9/16"-18	06	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 1/2"	3/4"	Any Angle	-40 to 250	2300N12	00000
		3/4"-16	08	37° Flared	3/4"-16	08	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	1 7/8"	7/8"	Any Angle	-40 to 250	2300N13	00000
		7/8"-14	10	37° Flared	7/8"-14	10	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	2"	1"	Any Angle	-40 to 250	2300N14	000000
		1 1/16"-12	12	37° Flared	1 1/16"-12	12	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	2 1/2"	1 1/4"	Any Angle	-40 to 250	2300N15	000000
		1 5/16"-12	16	37° Flared	1 5/16"-12	16	37° Flared	Not Rated	Not Rated	5,000	5	Buna-N	2 5/8"	1 1/2"	Any Angle	-40 to 250	2300N16	000000