Cam-and-Groove Reducers | McMaster-Carr

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	Type Type


Reducer	Reducing Adapter

	Coupling Size Coupling Size

1 1/2

2 1/2

	Material Material

Aluminum

Brass

Stainless Steel

	Cam-and-Groove Component Cam-and-Groove Component


Socket	Plug

	Connection Style Connection Style	Show

Cam-and-Groove

	Connection Style Connection Style	Hide

	For Use With For Use With

	Gender Gender


Female	Male

	Lever Material Lever Material

Stainless Steel

Brass

	Shape Shape

	Straight

	Compatible With Compatible With

Andrews Cam-and-Groove

Dixon Cam-and-Groove

Ever-Tite Cam-and-Groove

PT Coupling Cam-and-
Groove

	Specifications Met Specifications Met

Fed. Spec.

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Flow Control Flow Control

	Open

	Minimum Temperature Minimum Temperature

-199° to -50° F

	Maximum Temperature Maximum Temperature

250° to 499° F

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

DFARS Specialty Metals
COTS-Exempt

	Length Length

	Maximum Pressure Maximum Pressure

150 psi @ 72° F

200 psi @ 72° F

250 psi @ 72° F

	Connection Type Connection Type

	Hose

	Socket Locking Type Socket Locking Type

Lever

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

RoHS Compliant

	Number of Levers Number of Levers

	Socket ID Socket ID

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61 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) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.

Plug connectors and reducers are also known as SA spool adapters.

Socket connectors and reducers are also known as C × C couplers.

Plug-to-socket reducing adapters are also known as A × C couplers.

Aluminum couplings are lighter in weight than brass plugs and sockets. They have good abrasion and corrosion resistance. Brass couplings are softer than aluminum plugs and sockets, so they’re easier to thread together. They have good corrosion resistance.

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

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

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

Straight Plug Reducers

Maximum Pressure: See table
Temperature Range: -65° to 250° F
Specifications Met: Fed. Spec. A-A-59326
Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings

Coupling Size		Plug OD
(A)	(B)	(A)	(B)	Max. Pressure		Each
Anodized Aluminum
1 1/2	1	2 1/8"	1 7/16"	250 psi @ 72° F	00000000	000000
2 1/2	2	3"	2 1/2"	200 psi @ 72° F	00000000	00000
3	2	3 5/8"	2 1/2"	200 psi @ 72° F	00000000	00000
4	3	4 3/4"	3 5/8"	150 psi @ 72° F	00000000	000000

Straight Socket Reducers

Maximum Pressure: See table
Temperature Range: -65° to 250° F
Specifications Met: Fed. Spec. A-A-59326
Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings

Coupling Size		Socket ID		Levers
(A)	(B)	(A)	(B)	No. of	Material	Pull Ring Material	Max. Pressure		Each
Anodized Aluminum
3	2	3 5/8"	2 1/2"	4	316 Stainless Steel	Zinc-Plated Steel	200 psi @ 72° F	00000000	0000000
4	3	4 3/4"	3 5/8"	4	316 Stainless Steel	Zinc-Plated Steel	150 psi @ 72° F	00000000	000000
Brass
3	2	3 5/8"	2 1/2"	4	Brass	Zinc-Plated Steel	200 psi @ 72° F	000000000	000000

Protective Plug for 2 Coupling Size Sockets	00000000	Each	000000
316 Stainless Steel Replacement Levers for 2 Coupling Size Sockets	000000000	Each	00000
Protective Plug for 3 Coupling Size Sockets	00000000	Each	00000
316 Stainless Steel Replacement Levers for 3 and 4 Coupling Size Sockets	000000000	Each	00000
Protective Plug for 4 Coupling Size Sockets	00000000	Each	00000
Brass Replacement Levers for 3 Coupling Size Sockets	000000000	Each	0000
Brass Replacement Levers for 2 Coupling Size Sockets	000000000	Each	0000

Straight Plug-to-Socket Reducing Adapters

Maximum Pressure: See table
Temperature Range: -65° to 250° F
Specifications Met: Fed. Spec. A-A-59326
Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings

Reducing Adapters
Coupling Size				Levers						Replacement Gaskets
(A)	(B)	Plug OD	Socket ID	No. of	Material	Pull Ring Material	Max. Pressure		Each	Pkg. Qty.		Pkg.
Anodized Aluminum
1 1/2	1	2 1/8"	1 7/16"	2	316 Stainless Steel	Zinc-Plated Steel	250 psi @ 72° F	00000000	000000	10	0000000	00000
2	1 1/2	2 1/2"	2 1/8"	2	316 Stainless Steel	Zinc-Plated Steel	250 psi @ 72° F	00000000	00000	10	0000000	0000
2	3	2 1/2"	3 5/8"	2	316 Stainless Steel	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000	10	0000000	0000
3	2	3 5/8"	2 1/2"	2	316 Stainless Steel	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000	10	0000000	0000
3	4	3 5/8"	4 3/4"	2	316 Stainless Steel	Zinc-Plated Steel	150 psi @ 72° F	00000000	000000	10	0000000	00000
4	3	4 3/4"	3 5/8"	2	316 Stainless Steel	Zinc-Plated Steel	150 psi @ 72° F	00000000	000000	10	0000000	0000
Brass
2	3	2 1/2"	3 5/8"	2	Brass	Zinc-Plated Steel	200 psi @ 72° F	000000000	000000	10	0000000	0000
3	4	3 5/8"	4 3/4"	2	Brass	Zinc-Plated Steel	150 psi @ 72° F	000000000	000000	10	0000000	00000

316 Stainless Steel Replacement Lever for 2 Coupling Size Sockets	000000000	Each	000000
Protective Plug for 3 Coupling Size Sockets	00000000	Each	00000
316 Stainless Steel Replacement Lever for 3 and 4 Coupling Size Sockets	000000000	Each	00000
Protective Plug for 2 Coupling Size Sockets	00000000	Each	00000
Protective Plug for 4 Coupling Size Sockets	00000000	Each	00000
316 Stainless Steel Replacement Lever for 1 1/2 Coupling Size Sockets	000000000	Each	00000
316 Stainless Steel Replacement Lever for 1 Coupling Size Sockets	000000000	Each	00000
Brass Replacement Lever for 3 and 4 Coupling Size Sockets	000000000	Each	0000
Brass Replacement Lever for 2 Coupling Size Sockets	000000000	Each	0000

Metal Cam-and-Groove Hose Couplings for Chemicals and Petroleum

Made of metal, these couplings have better durability than plastic cam-and-groove couplings. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug. Couplings are compatible with Andrews, Dixon, Ever-Tite, and PT cam-and-groove couplings.

Plug connectors and reducers are also known as SA spool adapters.

Socket connectors and reducers are also known as C x C couplers.

Plug-to-socket reducing adapters are also known as A x C couplers.

Aluminum plugs and sockets are lighter in weight than 316 stainless steel plugs and sockets. They have good corrosion resistance. 316 stainless steel plugs and sockets have excellent corrosion resistance.