ASTM A53 Pipe Fittings | McMaster-Carr

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2,076 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.

Pipe and Fittings

Iron and Steel Threaded Pipe and Fittings

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Pair with low-pressure fittings; also known as Schedule 40

663 products

Thick-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Pair with medium-pressure fittings; also known as Schedule 80

527 products

Low-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

18 products

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

Pair with high-pressure fittings; also known as Schedule 160

108 products

Medium-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

11 products

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe Assortments

Keep various lengths of low-pressure pipe nipples and pipe on hand

11 products

Quick-Tighten Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Tighten both ends at the same time by turning with a wrench; also known as Schedule 40

16 products

Galvanized Iron and Steel Threaded Pipe and Fittings

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

Pair with low-pressure fittings; also known as Schedule 40

389 products

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

16 products

Medium-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

10 products

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

Pair with medium-pressure fittings; also known as Schedule 80

62 products

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

A plastic sleeve prevents corrosion when connecting different types of metal

11 products

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

Pair with high-pressure fittings; also known as Schedule 160

31 products

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

Threads have sealant applied for extra leak protection in low-pressure lines

17 products

Standard-Wall Galvanized Iron and Steel Threaded Pipe Nipples and Pipe Assortments

Keep multiple lengths of low-pressure pipe nipples and pipe on hand; also known as Schedule 40

11 products

Iron and Steel Unthreaded Pipe and Fittings

Standard-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Pair with low-pressure fittings; also known as Schedule 40

117 products

High-Pressure Iron and Steel Clamp-On Pipe Fittings for Drinking Water

NSF/ANSI rated for drinking water systems up to 500 psi

5 products

Low-Pressure Iron and Steel Compression Pipe Fittings

Tighten by hand for quick, leak-free connections in lines up to 200 psi

23 products

Other Products

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

30 products