ASTM A53 Pipe Fittings | McMaster-Carr

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2,066 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Iron and Steel Pipe and Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Also known as Schedule 40, this steel pipe is designed for low-pressure applications.

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

Standard-Wall Steel Pipe Nipples and Pipe
with Right-Hand and Left-Hand Threads

Pipe has clockwise (right-hand) threads on one end and counterclockwise (left-hand) threads on the other end. When you use a wrench to turn, connections on both ends tighten at the same time.

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Made of galvanized steel, this Schedule 40 pipe has fair corrosion resistance and is designed for low-pressure applications.

Standard-Wall Galvanized Steel Pipe Nipples
and Pipe for Joining Dissimilar Metals

A plastic sleeve prevents destructive corrosion when connecting different metals.

Standard-Wall Galvanized Steel Threaded
Pipe Nipples and Pipe with Sealant

The acrylic sealant on this pipe offers extra protection against leaks. Also known as schedule 40 pipe, this pipe is designed for use in low-pressure environments.

Standard-Wall Galvanized Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Typically used with high-pressure iron and steel threaded pipe fittings. Also known as Schedule 160.

Extra-Thick-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Typically used with high-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 160.

Medium-Pressure Iron and
Steel Threaded Pipe Fittings

For use in noncorrosive environments, these fittings have better strength than our low-pressure iron and steel pipe fittings.

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Typically used with medium-pressure iron and steel threaded pipe fittings. Also known as Schedule 80.

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings fair corrosion resistance. They have the strength to handle medium-pressure applications.

Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe

Typically used with medium-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 80.

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe

Typically used with standard-wall and low-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 40.

Clamp-On Connectors

Medium-Pressure Clamp-On Connectors

Use in medium-pressure applications up to 230 psi.

High-Pressure Clamp-On Connectors

Use in high-pressure applications up to 500 psi.

Easy-Fit Barbed Hose Fittings for Air and Water

Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into hose and secure with a clamp.

Iron and Steel Pipe and Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Standard-Wall Steel ThreadedPipe Nipples and Pipe

Standard-Wall Steel ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipples and Pipewith Right-Hand and Left-Hand Threads

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Standard-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Standard-Wall Galvanized Steel Pipe Nipplesand Pipe for Joining Dissimilar Metals

Standard-Wall Galvanized Steel ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Galvanized Steel ThreadedPipe Nipple and Pipe Assortments

Extra-Thick-Wall Steel ThreadedPipe Nipples and Pipe

Extra-Thick-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Medium-Pressure Iron andSteel Threaded Pipe Fittings

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Medium-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Thick-Wall Galvanized Iron and SteelThreaded Pipe Nipples and Pipe

Standard-Wall Steel UnthreadedPipe Nipples and Pipe

Clamp-On Connectors

Medium-Pressure Clamp-On Connectors

High-Pressure Clamp-On Connectors

Easy-Fit Barbed Hose Fittings for Air and Water

Easy-Fit Barbed Hose Fittings for Air and Water

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipples and Pipe
with Right-Hand and Left-Hand Threads

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Galvanized Steel Pipe Nipples
and Pipe for Joining Dissimilar Metals

Standard-Wall Galvanized Steel Threaded
Pipe Nipples and Pipe with Sealant

Standard-Wall Galvanized Steel Threaded
Pipe Nipple and Pipe Assortments

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Extra-Thick-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Medium-Pressure Iron and
Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe