Quick Disconnect Reducers

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	Quick-Disconnect Component Quick-Disconnect Component

	Plug
	Plug and Socket Set
	Socket

	Pipe Size Pipe Size

1/4

3/8

	Thread Type Thread Type

NPTF

	Coupling Size Coupling Size

1/4

	Type Type

	Reducing Adapter

	Flow Control Flow Control

	Open
	With Shut- Off

	Gender Gender

Female

Male

	Connection Type Connection Type


Hose	Pipe

	Connection Style Connection Style	Show

Quick Disconnect

	Connection Style Connection Style	Hide

	For Use With For Use With

Air

	Shape Shape

	Straight

	Socket Locking Type Socket Locking Type

Sleeve Lock

	Sleeve Material Sleeve Material

Steel

	Maximum Pressure Maximum Pressure

300 psi @ 72° F

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Gasket Material Gasket Material

Rubber

	Maximum Temperature Maximum Temperature

200° to 249° F

	Minimum Temperature Minimum Temperature

-49° to 0° F

	Plug Length Plug Length

1 21/32"

1 11/16"

	Specifications Met Specifications Met

Fed. Spec.

ISO

	Maximum Vacuum Maximum Vacuum

Not Rated

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant with
Exemptions

	Socket Length Socket Length

4 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. They are also known as industrial interchange couplings. All Industrial plugs are compatible with any of the Industrial sockets of the same coupling size, regardless of the pipe size or barbed hose ID.

Steel is stronger and more durable than other metals. Zinc-plated steel has fair corrosion resistance and should be used primarily in dry environments. Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. NPTF (Dryseal) threads are compatible with NPT threads.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

For technical drawings and 3-D models, click on a part number.

Plug and Sleeve-Lock Socket Sets, NPTF Male Threaded Pipe

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 225° F
Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B, except 3/8 Coupling Size Sets: ISO 6150/B

A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. They are also known as industrial interchange couplings. All Industrial plugs are compatible with any of the Industrial sockets of the same coupling size, regardless of the pipe size or barbed hose ID.

Plugs are also known as nipples.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.

Pipe Size			Plug Tip
Plug	Socket	Coupling Size	Lg.	Dia.		Each
Zinc-Plated Steel Plug and Brass Socket
1/4	3/8	1/4	3/16"	5/16"	0000000	000000

Plug and Sleeve-Lock Socket Sets, NPTF Female Threaded Pipe

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 225° F
Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B, except 3/8 Coupling Size Sets: ISO 6150/B

Plugs are also known as nipples.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.

Pipe Size			Plug Tip
Plug	Socket	Coupling Size	Lg.	Dia.		Each
Zinc-Plated Steel Plug and Brass Socket
1/4	3/8	1/4	3/16"	5/16"	0000000	000000

Plug and Sleeve-Lock Socket Sets, NPTF Male × Female Threaded Pipe

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 225° F
Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B, except 3/8 Coupling Size Sets: ISO 6150/B

Plugs are also known as nipples.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.

Pipe Size			Plug Tip
Plug	Socket	Coupling Size	Lg.	Dia.		Each
Zinc-Plated Steel Plug and Brass Socket
1/4	3/8	1/4	3/16"	5/16"	0000000	000000

Plug and Sleeve-Lock Socket Sets, NPTF Female × Male Threaded Pipe

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -40° to 225° F
Specifications Met: Fed. Spec. A-A-59439, ISO 6150/B, except 3/8 Coupling Size Sets: ISO 6150/B

Plugs are also known as nipples.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.

Pipe Size			Plug Tip
Plug	Socket	Coupling Size	Lg.	Dia.		Each
Zinc-Plated Steel Plug and Brass Socket
1/4	3/8	1/4	3/16"	5/16"	0000000	000000

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How to Identify and Measure Fittings

Industrial Quick-Disconnect Hose Couplings for Air