Valve Adapters | McMaster-Carr

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Schrader Valve Connection Type

Fitting Connection

System of Measurement

Pipe Size

Connects To

Thread Type

Thread Size

Gender

Fitting Type

Shape

For Use With

Maximum Pressure

Material

Tube OD

Tube ID

Connection Port

Outlet Shape

Length

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Exempt

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Number of Outlets

Hex Size

117 Products

Air Chucks


Style A	Style B	Style C	Style D	Style E	Style F

Style G	Style H	Style J	Style K	Sealing Washers for Styles B, C, and D	Sealing Washers for Style H

Attach these chucks to your air hose so you can connect the hose to Schrader valves. Most often recognized from car and bike tires, Schrader valves are also commonly found on compressed air tanks and high-pressure hydraulic systems. Do not use these air chucks with tire inflator gauges.

Press-and-Hold Schrader Valve Connection


Style A	Style B	Style C	Style D	Style E

2 Outlets—Chucks with 2 outlets can be used at different angles and have an extended reach, so they’re ideal if your valve is hard to reach or in an awkward spot.

For 0.305"-32 Thread Size—Air chucks for a 0.305”-32 thread size fit standard-bore Schrader valves.

	Outlet					Inlet									Each		Package
Style	Shape	No. of	For Thread Size	For Thread Type	Gender	Fitting Connection	Connects to	Pipe Size	Thread Type	For Tube ID	Gender	Lg.	Max. Pressure, psi	Washer Material		Each	Pkg. Qty.		Pkg.
A	Angled	1	0.305"-32	Schrader	Female	Threaded	Pipe	1/4	NPT	—	Female	1 1/4"	150	—	6146A23	00000	10	6146A231	000000
B	Straight	1	0.305"-32	Schrader	Female	Threaded	Pipe	1/4	NPT	—	Female	3 1/4"	150	Buna-N	6146A25	00000	10	6146A251	000000
C	Angled	2	0.305"-32	Schrader	Female	Threaded	Pipe	1/4	NPT	—	Female	5 1/4"	150	Buna-N	6701A41	00000	10	6701A411	00000
D	Angled, Straight	2	0.305"-32	Schrader	Female	Threaded	Pipe	1/4	NPT	—	Female	5 1/4"	150	Buna-N	6146A103	00000	10	6146A107	000000
E	Angled	1	0.305"-32	Schrader	Female	Barbed	Tube	—	—	1/4"	Male	2 1/4"	150	—	6146A21	0000	10	6146A211	00000
E	Angled	1	0.305"-32	Schrader	Female	Barbed	Tube	—	—	3/8"	Male	2 1/2"	150	—	6146A22	0000	10	6146A26	00000

Accessories and Replacements for Air Chucks

For Style	Clip Lg.	Material		Each
A, E	1 1/2"	Metal	6146A101	000000

For Style	Material	Pkg. Qty.		Pkg.
B, C, D	Buna-N	10	6146A104	00000

Clip-On Schrader Valve Connection


Style F	Style G	Style H

Chucks with a clip-on Schrader valve connection attach to the valve stem, so you don’t need to hold them as the valve fills.

For 0.305"-32 Thread Size—Air chucks for a 0.305”-32 thread size fit standard-bore Schrader valves.

	Outlet					Inlet
Style	Shape	No. of	For Thread Size	For Thread Type	Gender	Fitting Connection	Connects to	Pipe Size	Thread Type	For Tube ID	Gender	Lg.	Clip Lg.	Max. Pressure, psi		Each
F	Angled	1	0.305"-32	Schrader	Female	Threaded	Pipe	1/4	NPT	—	Female	2 3/4"	1 3/4"	150	6140A62	000000
G	Angled	1	0.305"-32	Schrader	Female	Barbed	Tube	—	—	1/4"	Male	2 1/4"	1 1/2"	150	6140A61	00000
H	Straight	1	0.305"-32	Schrader	Female	Barbed	Tube	—	—	1/4"	Male	1 1/2"	1 1/4"	150	6146A102	0000

Replacement Sealing Washers

For Style	Material	Pkg. Qty.		Pkg.
H	Buna-N	10	6146A105	00000

Sleeve-Lock Schrader Valve Connection

Style J

Chucks with a sleeve-lock Schrader valve connection grab onto the valve by sliding the sleeve forward onto the valve. To disconnect, slide the sleeve back and pull out the valve.

For 0.305"-32 Thread Size—Air chucks for a 0.305”-32 thread size fit standard-bore Schrader valves.

For 0.485"-26 Thread Size—Air chucks for a 0.485”-26 thread size fit large-bore Schrader valves.

	Outlet					Inlet
Style	Shape	No. of	For Thread Size	For Thread Type	Gender	Fitting Connection	Connects to	Pipe Size	Thread Type	Gender	Lg.	Max. Pressure, psi		Each
J	Straight	1	0.305"-32	Schrader	Female	Threaded	Pipe	1/4	NPT	Female	1 1/2"	120	3536N1	000000
J	Straight	1	0.485"-26	Schrader	Female	Threaded	Pipe	1/4	NPT	Female	1 3/4"	90	6146A106	00000

Threaded Schrader Valve Connection

Style K

Chucks with a threaded Schrader valve connection screw onto valves for a secure connection that you don’t need to hold in place.

For 0.305"-32 Thread Size—Air chucks for a 0.305”-32 thread size fit standard-bore Schrader valves.

	Outlet					Inlet						Each		Package
Style	Shape	No. of	For Thread Size	For Thread Type	Gender	Fitting Connection	Connects to	For Tube ID	Gender	Lg.	Max. Pressure, psi		Each	Pkg. Qty.		Pkg.
K	Straight	1	0.305"-32	Schrader	Female	Barbed	Tube	7/32"	Male	1"	120	3536N2	00000	10	3536N21	000000

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 × NPT Female Threaded Pipe

70° Elbow

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

	Inlet					Temp. Range, ° F
	Thread Size	Pipe Size	Material	Outlet Material	Max. Pressure, psi	Min.	Max.		Each
70° Elbow



		0.305"-32	1/8	Brass	Brass	3,000	-20	250	3534N4	000000

Schrader Female Threaded Hose × NPT Male Threaded Pipe

90° Elbow With

Shutoff

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.

	Inlet					Temp. Range, ° F
	Thread Size	Pipe Size	Material	Outlet Material	Max. Pressure, psi	Min.	Max.	Features		Each
90° Elbow With Shutoff



		0.305"-32	1/8	Brass	Brass	3,000	-40	160	Core Depressor Pin	3534N1	000000

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.

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

	Inlet		Outlet				Temp. Range
	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° F	250° F	—	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° F	160° F	Core Depressor Pin	SAE AS4395	3534N2	00000


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

Valve Stem Adapters

Make your valve stem larger with these stem adapters, so they fit ISO 5211 valve actuators.

Outer Stem Size, mm	Inner Stem Size, mm	Ht., mm	Material
11	9	10	Steel	4331N11
14	11	16	Steel	4331N12
17	11	17	Steel	4331N13
17	14	17	Steel	4331N14
22	17	22	Steel	4331N15
27	22	27	Steel	4331N16
36	27	36	Steel	4331N17

Valve Stem Extensions

Lengthen the stem of your tire valve for easier access.

Installed Lg.	Material	Pkg. Qty.		Pkg.
1 1/4"	Plastic	4	4991T901	00000

Male Round Universal Thread Adapters with Through Hole


Side A	Side B

Join two female-threaded parts of various thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through. Attach your parts to these adapters and use a hex key to secure the connection. Made of 304 stainless steel, all will hold up in wet environments. O-rings on each side create a tight seal, making them good for vacuum and compressed-air applications.

	Pipe Size			Thread Type		Thread Lg.
	(A)	(B)	Thread Size (B)	(A)	(B)	(A)	(B)	Hex Size	OD	Tensile Strength, psi	Hardness	O-Ring Material		Each
304 Stainless Steel



		3/8	—	10-32, M5	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Metric, UNF, Universal	0.25"	13/64"	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N111	000000


		3/8	1/8	—	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Universal	0.25"	1/4"	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N112	00000
		3/8	1/4	—	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Universal	0.25"	1/4"	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N113	00000
		3/8	3/8	—	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Universal	0.25"	1/4"	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N114	00000

Inch-to-NPT Male-Female Hex Thread Adapters with Through Hole


Brass	316 Stainless Steel

The through hole allows you to connect float rods to float valves.

Brass—Brass adapters have good strength and corrosion resistance.

316 Stainless Steel—316 stainless steel adapters have the best corrosion resistance. They stand up to wet environments, salt water, and harsh chemicals.

			Thread Type		Thread Lg.		Gender			Hex
	Pipe Size (A)	Thread Size (B)	(A)	(B)	(A)	(B)	(A)	(B)	Thread Fit (B)	Size	Length		Each
Brass



		1/4	1/4"-20	NPT	UNC	7/16"	5/8"	Male	Female	Unified Standard Class 2B	9/16"	3/16"	4624K99	00000


		3/8	1/4"-20	NPT	UNC	1/2"	11/16"	Male	Female	Unified Standard Class 2B	11/16"	3/16"	4624K41	0000
		3/8	5/16"-18	NPT	UNC	1/2"	11/16"	Male	Female	Unified Standard Class 2B	11/16"	3/16"	4624K44	0000
		3/8	3/8"-16	NPT	UNC	1/2"	11/16"	Male	Female	Unified Standard Class 2B	11/16"	3/16"	4624K47	0000
		1/2	1/4"-20	NPT	UNC	9/16"	13/16"	Male	Female	Unified Standard Class 2B	7/8"	1/4"	4624K42	0000
		1/2	5/16"-18	NPT	UNC	9/16"	13/16"	Male	Female	Unified Standard Class 2B	7/8"	1/4"	4624K45	00000
		1/2	3/8"-16	NPT	UNC	9/16"	13/16"	Male	Female	Unified Standard Class 2B	7/8"	1/4"	4624K48	0000
		3/4	1/4"-20	NPT	UNC	5/8"	15/16"	Male	Female	Unified Standard Class 2B	1 1/16"	5/16"	4624K43	00000
		3/4	5/16"-18	NPT	UNC	5/8"	15/16"	Male	Female	Unified Standard Class 2B	1 1/16"	5/16"	4624K46	00000
		3/4	3/8"-16	NPT	UNC	5/8"	15/16"	Male	Female	Unified Standard Class 2B	1 1/16"	5/16"	4624K49	00000


		316 Stainless Steel



				3/8	1/4"-20	NPT	UNC	11/16"	1"	Male	Female	Unified Standard Class 2B	11/16"	5/16"	4624K11	00000


				3/8	5/16"-18	NPT	UNC	11/16"	1"	Male	Female	Unified Standard Class 2B	11/16"	5/16"	4624K14	00000
				3/8	3/8"-16	NPT	UNC	11/16"	1"	Male	Female	Unified Standard Class 2B	11/16"	5/16"	4624K12	00000
				1/2	3/8"-16	NPT	UNC	3/4"	1 1/16"	Male	Female	Unified Standard Class 2B	7/8"	5/16"	4624K13	00000

Male-Female Round Universal Thread Adapters with Through Hole


Side A	Side B

Image of Attribute. Front orientation. Contains Annotated, Inset. Thread Adapters. Male-Female Round Universal Thread Adapters with Through Hole.

Connect male- and female-threaded parts of different thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through. Attach your parts to these adapters and use a hex key to secure the connection. Made of 304 stainless steel, all will hold up in wet environments. O-rings on each side create a tight seal, making them good for vacuum and compressed-air applications.

	Pipe Size			Thread Type		Thread Lg.		Gender
	(A)	(B)	Thread Size (B)	(A)	(B)	(A)	(B)	(A)	(B)	Hex Size	OD	Tensile Strength, psi	Hardness	O-Ring Material		Each
304 Stainless Steel



		3/8	—	10-32, M5	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Metric, UNF, Universal	0.25"	9/64"	Male	Female	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N115	000000


		3/8	1/8	—	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Universal	0.25"	1/4"	Male	Female	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N116	00000
		3/8	1/4	—	BSPP, BSPT, NPT, NPTF, Universal	BSPP, BSPT, NPT, NPTF, Universal	0.25"	1/4"	Male	Female	13/64"	27/32"	73,000	Rockwell B70	Buna-N	5410N117	00000

Valve Stems

Snap these valves into tubeless tire rims.

Installed Lg.	For Rim Hole Dia.	Max. Pressure, psi	Material	Stem Material	Pkg. Qty.		Pkg.
7/8"	0.453"	60	Rubber	Brass	2	4991T84	00000
1 1/4"	0.453"	60	Rubber	Brass	2	4991T951	0000
1 1/2"	0.453"	60	Rubber	Brass	2	4991T952	0000
2"	0.453"	60	Rubber	Brass	2	4991T953	0000

Flow-Control Valve Union Fittings

Use these fittings with union ball valves.

	For Pipe Size	OD	ID		Pair
Dark Gray PVC







				Socket Connect

				2 1/2	6 11/16"	2 7/8"	4887K29	000000


				3	6 11/16"	4 3/8"	4887K31	00000
				4	8 9/16"	5 3/8"	4887K32	00000




						Threaded BSPP

						1	3 3/8"	15/16"	4543K63	00000


						1 1/2	4 3/8"	1 1/2"	4543K65	00000
						2	5 3/16"	1 15/16"	4543K66	00000




								Threaded NPT

								3	6 11/16"	4 3/8"	4887K26	000000


								4	8 9/16"	5 3/8"	4887K27	000000




										Threaded NPT and Socket Connect

										1/2	1 7/8"	1/2"	4812T51	00000


										1/2	2 1/4"	1 1/8"	4887K11	00000
										3/4	2 1/4"	3/4"	4812T53	00000
										3/4	2 5/8"	1 3/8"	4887K12	00000
										1	2 1/2"	15/16"	4812T55	00000
										1	3"	1 3/4"	4887K15	00000
										1 1/4	4"	2 1/8"	4887K16	00000
										1 1/2	3 1/2"	1 1/2"	4812T57	00000
										1 1/2	4"	2 3/8"	4887K17	00000
										2	4 5/16"	1 15/16"	4812T59	00000
										2	4 3/4"	3 3/8"	4887K18	00000


										Light Gray CPVC







Socket Connect

2 1/2	6.6875"													3.375"	4719K37	00000


3	6 11/16"													4 3/8"	4719K38	00000
4	8 9/16"	5 3/8"												4719K39	000000




		Threaded BSPP

		2	5 3/16"											1 15/16"	4727K56	000000




				Threaded NPT

				3	8 9/16"									4 3/8"	4719K35	000000




														Threaded NPT and Socket Connect

														1/2	1 7/8"	1/2"	4823T31	00000


						1/2	2 1/4"							1 1/8"	4719K21	00000
						3/4	2 1/4"							3/4"	4823T33	00000
						3/4	2 5/8"							1 3/8"	4719K22	00000
						1	2 1/2"							15/16"	4823T35	00000
						1	3"							2 3/8"	4719K23	00000
						1 1/4	4"							1 3/4"	4719K24	00000
						1 1/2	3 1/2"							1 1/2"	4823T37	00000
						1 1/2	4"							2 1/8"	4719K25	00000
						2	4 5/16"	1 15/16"	4823T39					000000
						2	4 3/4"	3 3/8"	4719K26					00000

Manual-to-Touch-Free Flush Valve Converters


Style A	Style B

Style C	Style D

Style E

For touch-free flushing on your toilets or urinals, attach these converters to your manual flush valves. They’re activated by a motion sensor, but you can also flush with a manual override option. When properly installed—no higher than 44” from the floor—these converters help you comply with ADA guidelines.

Style A—Style A should have the same consumption rate (water per flush) as your toilet or urinal.

Style B—Style B should have the same consumption rate (water per flush) as your urinal. These are powered by a solar cell, but they also have a backup battery to ensure you can flush repeatedly. The solar cell uses artificial light to generate power, even if the lights only turn on when the room is occupied, which extends the battery life. These converters connect to your phone via Bluetooth to set the sensor distance and check the battery strength. To prevent bacteria growth in rarely used toilets, you can also schedule flushes at set intervals. Download a free app and stand within sight of a converter to connect to your phone.

Style C—Style C should have the same consumption rate (water per flush) as your toilet or urinal.

Style D—Style D replace the handle of your urinal or tankless toilet. Use the tilt-down adapter (sold separately) when connecting Style D to valves with a 27" installation distance. It angles the sensor down to detect users and prevent unintended flushes.

Style E—Style E slip over the handle of your urinal or tankless toilet.

	Style	Batteries Included	Specs. Met	Includes		Each
For Sloan Regal, Royal Toilets







		Battery Powered

		A	1.28	RESS-C	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K54	0000000


		A	1.6, 3.5, 4.5	RESS-C	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K51	000000




				Solar Powered with Backup Battery

				B	1.1, 1.6	RESS-C BT	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K82	000000


				B	1.28	RESS-C BT	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K81	000000


				For Sloan Regal, Royal Urinals







								Battery Powered

								A	0.25	RESS-U	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K31	000000


								A	0.5	RESS-U	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K53	000000
								A	1, 1.5	RESS-U	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K52	000000




										Solar Powered with Backup Battery

										B	0.125	RESS-U BT	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K83	000000


										B	0.25	RESS-U BT	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K84	000000
										B	0.5	RESS-U BT	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K85	000000
										B	1	RESS-U BT	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K86	000000


										For Zurn AquaVantage Toilets







														Battery Powered

C														1.1, 1.6	ZERK-C-DF-TM	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K71	000000


C	1.28													ZERK-C-HET-TM	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K92	000000


For Zurn AquaVantage Urinals







														Battery Powered

		C												0.125	ZERK-U-ULF-TM	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K94	000000


		C	0.5											ZERK-U-EWS-TM	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K93	000000
		C	1											ZERK-U-WS1-TM	Yes	ICC A117.1	Gasket, Handle Cap, Installation Tools	2834K95	000000


		For Zurn, Sloan Toilets and Urinals







														Battery Powered

						D	—							—	Yes	—	Installation Tools	3747K21	000000


						E	—							—	Yes	—	Installation Tools	3747K31	000000

Accessories and Replacements for Flush Valve Converters

		Each
Replacement Handle Nut for Style A and B	2834K88	000000
Replacement Coupling Ring for Style C	2834K87	00000
Tilt-Down Adapter for Style D	3747K23	00000