McMaster-Carr

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	Type Type


Reducing Adapter	Reducer

	Material Material

Aluminum

Brass

Stainless Steel

	Shape Shape

	Straight

	Connection Style Connection Style	Show

Cam-and-Groove

	Connection Style Connection Style	Hide

	Coupling Size Coupling Size

3/4

1 1/2

2 1/2

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


Plug	Socket

	Gender Gender

Female

Male

	For Use With For Use With

	Lever Material Lever Material

Stainless Steel

Brass

	Flow Control Flow Control

	Open

	Connection Type Connection Type


Pipe	Hose

	Compatible With Compatible With

Andrews Cam-and-Groove

Dixon Cam-and-Groove

Ever-Tite Cam-and-Groove

PT Coupling Cam-and-
Groove

	Maximum Temperature Maximum Temperature

250° to 499° F

	Minimum Temperature Minimum Temperature

-199° to -50° F

	Maximum Pressure Maximum Pressure

150 psi @ 72° F

200 psi @ 72° F

250 psi @ 72° F

	Specifications Met Specifications Met

Fed. Spec.

	Length Length

	Plug OD Plug OD

	Socket Locking Type Socket Locking Type

Lever

	Socket ID Socket ID

	Number of Levers Number of Levers

	Pull Ring Material Pull Ring Material

Steel

Stainless Steel

	Gasket Material Gasket Material

Rubber

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78 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 plugs and sockets are lighter in weight than brass plugs and sockets. They have good abrasion and corrosion resistance. Brass plugs and sockets 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	00000
Brass
1 1/2	1	2 1/8"	1 7/16"	250 psi @ 72° F	000000000	000000
2 1/2	2	3"	2 1/2"	200 psi @ 72° F	000000000	000000
3	2	3 5/8"	2 1/2"	200 psi @ 72° F	000000000	000000
4	3	4 3/4"	3 5/8"	150 psi @ 72° F	000000000	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
4	3	4 3/4"	3 5/8"	4	Brass	Zinc-Plated Steel	150 psi @ 72° F	000000000	000000

Protective Plug for 2 Coupling Size Sockets	00000000	Each	000000
316 Stainless Steel Replacement Levers for 3 and 4 Coupling Size Sockets	000000000	Each	00000
Protective Plug for 3 Coupling Size Sockets	00000000	Each	00000
316 Stainless Steel Replacement Levers for 2 Coupling Size Sockets	000000000	Each	0000
Protective Plug for 4 Coupling Size Sockets	00000000	Each	00000
Brass Replacement Levers for 3 and 4 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
1 1/2	1	2 1/8"	1 7/16"	2	Brass	Zinc-Plated Steel	250 psi @ 72° F	000000000	000000	10	0000000	0000
2	1 1/2	2 1/2"	2 1/8"	2	Brass	Zinc-Plated Steel	250 psi @ 72° F	000000000	000000	10	0000000	0000
2	3	2 1/2"	3 5/8"	2	Brass	Zinc-Plated Steel	200 psi @ 72° F	000000000	000000	10	0000000	0000
3	2	3 5/8"	2 1/2"	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
4	3	4 3/4"	3 5/8"	2	Brass	Zinc-Plated Steel	150 psi @ 72° F	000000000	000000	10	0000000	0000

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

Plugs with male threaded end are also known as F adapters.

Plugs with female threaded end are also known as A adapters.

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

Sockets with male threaded end are also known as B couplers.

Straight sockets with female threaded end are also known as D couplers.

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.

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

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: See table
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

Coupling Size		Plug OD
(A)	(B)	(A)	(B)	Max. Pressure		Each
Aluminum
1 1/2	1	2 1/8"	1 7/16"	250 psi @ 72° F	000000000	000000
2 1/2	2	3"	2 1/2"	200 psi @ 72° F	000000000	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	00000
316 Stainless Steel
3	2	3 5/8"	2 1/2"	200 psi @ 72° F	0000000	000000
4	3	4 3/4"	3 5/8"	150 psi @ 72° F	0000000	000000

Straight Socket Reducers

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: See table
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

Coupling Size		Socket ID
(A)	(B)	(A)	(B)	No. of Levers	Pull Ring Material	Max. Pressure		Each
Aluminum with Brass Levers
3	2	3 5/8"	2 1/2"	4	Zinc-Plated Steel	200 psi @ 72° F	000000000	000000
4	3	4 3/4"	3 5/8"	4	Zinc-Plated Steel	150 psi @ 72° F	000000000	00000
Aluminum with 316 Stainless Steel Levers
3	2	3 5/8"	2 1/2"	4	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000
4	3	4 3/4"	3 5/8"	4	Zinc-Plated Steel	150 psi @ 72° F	00000000	00000
316 Stainless Steel with 316 Stainless Steel Levers
3	2	3 5/8"	2 1/2"	4	304 Stainless Steel	200 psi @ 72° F	00000000	000000
4	3	4 3/4"	3 5/8"	4	304 Stainless Steel	150 psi @ 72° F	00000000	000000

Replacement Gasket for 3 Coupling Size Sockets (10/Pkg.)	0000000	Pkg.	00000
Replacement Gasket for 4 Coupling Size Sockets (10/Pkg.)	0000000	Pkg.	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
Replacement Gasket for 2 Coupling Size Sockets (10/Pkg.)	0000000	Pkg.	0000
316 Stainless Steel Replacement Lever for 3 and 4 Coupling Size Sockets	000000000	Each	00000
316 Stainless Steel Replacement Lever for 2 Coupling Size Sockets	000000000	Each	0000

Straight Plug-to-Socket Reducing Adapters

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: See table
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

Reducing Adapters
Coupling Size									Replacement Gaskets
(A)	(B)	Plug OD (A)	Socket ID (B)	No. of Levers	Pull Ring Material	Max. Pressure		Each	Pkg. Qty.		Pkg.
Aluminum with Brass Levers
1 1/2	1	2 1/8"	1 7/16"	2	Zinc-Plated Steel	250 psi @ 72° F	000000000	000000	10	0000000	00000
2	1 1/2	2 1/2"	2 1/8"	2	Zinc-Plated Steel	250 psi @ 72° F	000000000	00000	10	0000000	0000
2	3	2 1/2"	3 5/8"	2	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000	10	0000000	0000
3	2	3 5/8"	2 1/2"	2	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000	10	0000000	0000
3	4	3 5/8"	4 3/4"	2	Zinc-Plated Steel	150 psi @ 72° F	00000000	00000	10	0000000	00000
4	3	4 3/4"	3 5/8"	2	Zinc-Plated Steel	150 psi @ 72° F	00000000	00000	10	0000000	0000
Aluminum with 316 Stainless Steel Levers
1 1/2	1	2 1/8"	1 7/16"	2	Zinc-Plated Steel	250 psi @ 72° F	00000000	00000	10	0000000	0000
2	1 1/2	2 1/2"	2 1/8"	2	Zinc-Plated Steel	250 psi @ 72° F	00000000	00000	10	0000000	0000
2	3	2 1/2"	3 5/8"	2	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000	10	0000000	0000
3	2	3 5/8"	2 1/2"	2	Zinc-Plated Steel	200 psi @ 72° F	00000000	00000	10	0000000	0000
3	4	3 5/8"	4 3/4"	2	Zinc-Plated Steel	150 psi @ 72° F	00000000	00000	10	0000000	00000
4	3	4 3/4"	3 5/8"	2	Zinc-Plated Steel	150 psi @ 72° F	00000000	00000	10	0000000	0000
316 Stainless Steel with 316 Stainless Steel Levers
1 1/2	1	2 1/8"	1 7/16"	2	304 Stainless Steel	250 psi @ 72° F	000000000	000000	10	0000000	0000
2	1 1/2	2 1/2"	2 1/8"	2	304 Stainless Steel	250 psi @ 72° F	000000000	000000	10	0000000	0000
2	3	2 1/2"	3 5/8"	2	304 Stainless Steel	200 psi @ 72° F	0000000	000000	10	0000000	0000
3	2	3 5/8"	2 1/2"	2	304 Stainless Steel	200 psi @ 72° F	0000000	000000	10	0000000	0000
3	4	3 5/8"	4 3/4"	2	304 Stainless Steel	150 psi @ 72° F	0000000	000000	10	0000000	00000
4	3	4 3/4"	3 5/8"	2	304 Stainless Steel	150 psi @ 72° F	0000000	000000	10	0000000	0000

Brass Replacement Lever for 2 Coupling Size Sockets	Each	00000
Brass Replacement Lever for 3 and 4 Coupling Size Sockets	Each	0000
Brass Replacement Lever for 1 1/2 Coupling Size Sockets	Each	0000
Brass Replacement Lever for 1 Coupling Size Sockets	Each	0000
316 Stainless Steel Replacement Lever for 3 and 4 Coupling Size Sockets	Each	00000
316 Stainless Steel Replacement Lever for 1 1/2 Coupling Size Sockets	Each	00000
316 Stainless Steel Replacement Lever for 2 Coupling Size Sockets	Each	0000
316 Stainless Steel Replacement Lever for 1 Coupling Size Sockets	Each	0000

Straight Plug Reducing Adapters, BSPT Male Threaded Pipe

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: 250 psi @ 72° F
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

Aluminum
Coupling Size	Plug OD	Pipe Size		Each
3/4	15/16"	1/2	000000000	00000
316 Stainless Steel
3/4	15/16"	1/2	000000000	00000

Straight Plug Reducing Adapters, BSPP Female Threaded Pipe

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: 250 psi @ 72° F
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

316 Stainless Steel
Coupling Size	Plug OD	Pipe Size		Each
3/4	15/16"	1/2	000000000	000000

Straight Socket Reducing Adapters, BSPT Male Threaded Pipe

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: 250 psi @ 72° F
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

Reducing Adapters							Replacement Levers
Coupling Size	Socket ID	Pipe Size	No. of Levers	Pull Ring Material		Each		Each
Aluminum with 316 Stainless Steel Levers
3/4	15/16"	1/2	2	Zinc-Plated Steel	000000000	000000	000000000	00000
316 Stainless Steel with 316 Stainless Steel Levers
3/4	15/16"	1/2	2	316 Stainless Steel	000000000	00000	000000000	0000

Straight Socket Reducing Adapters, BSPP Female Threaded Pipe

For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
Maximum Pressure: 250 psi @ 72° F
Temperature Range: -65° to 250° F
Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
Specifications Met: Fed. Spec. A-A-59326

Reducing Adapters							Replacement Levers
Coupling Size	Socket ID	Pipe Size	No. of Levers	Pull Ring Material		Each		Each
Aluminum with 316 Stainless Steel Levers
3/4	15/16"	1/2	2	Zinc-Plated Steel	000000000	000000	000000000	00000
316 Stainless Steel with 316 Stainless Steel Levers
3/4	15/16"	1/2	2	316 Stainless Steel	000000000	00000	000000000	0000

Terms and Conditions and Privacy Policy

How to Identify and Measure Fittings

Metal Cam-and-Groove Hose Couplings for Water

Metal Cam-and-Groove Hose Couplingsfor Chemicals and Petroleum

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