Barrel Nipples | McMaster-Carr

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4,811 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.

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Typically used with low-pressure stainless steel threaded pipe fittings.

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

Typically used with low-pressure stainless steel threaded pipe fittings.

Thick-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Typically used with medium- to high-pressure stainless steel threaded pipe fittings.

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 Steel Threaded
Pipe Nipples and Pipe

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

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.

Thick-Wall Steel Threaded Pipe Nipples and Pipe

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

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.

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.

Super-Thick-Wall Steel
Threaded Pipe Nipples and Pipe

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

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.

Low-Pressure Brass and
Bronze Threaded Pipe Fittings

Use these fittings in low-pressure flow applications. They have good corrosion resistance.

Standard-Wall Brass Threaded
Pipe Nipples and Pipe

Typically used with low-pressure brass and bronze threaded pipe fittings.

Standard-Wall Brass Threaded
Pipe Nipple and Pipe Assortments

Keep various lengths of brass pipe on hand for applications requiring good corrosion resistance.

Standard-Wall Brass Threaded
Pipe Nipples and Pipe with Sealant

Typically used with low-pressure brass and bronze threaded pipe fittings.

Standard-Wall Chrome-Plated Brass
Threaded Pipe Nipples and Pipe

Typically used with low-pressure brass and bronze threaded pipe fittings.

High-Pressure Brass Threaded
Pipe Fittings with Sealant

Not only do these brass fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks.

High-Pressure Brass Threaded
Pipe Nipples and Pipe with Sealant

Typically used with high-pressure brass and bronze threaded pipe fittings.

High-Pressure Brass Threaded
Pipe Nipples and Pipe

Typically used with high-pressure brass and bronze threaded pipe fittings.

High-Pressure Brass Threaded Pipe
Nipples and Pipe for Drinking Water

Typically used with high-pressure brass and bronze threaded pipe fittings.

High-Pressure Plated Brass
Threaded Pipe Nipples and Pipe

Typically used with high-pressure brass and bronze threaded pipe fittings.

High-Pressure Plated Brass Threaded Pipe Fittings

The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications.

Thick-Wall Brass Threaded Pipe Nipples and Pipe

Typically used with medium-pressure brass and bronze threaded pipe fittings.

Universal-Thread Plated Brass Pipe Fittings

When you're unsure of the exact thread type you need, these fittings have universal threads that are compatible with the most common ones (NPT, NPTF, BSPP, BSPT).

Standard-Wall Aluminum
Unthreaded Pipe Nipples and Pipe

Typically used with standard-wall aluminum unthreaded pipe fittings.

Thick-Wall Aluminum Threaded
Pipe Nipples and Pipe

Typically used with high-pressure aluminum threaded pipe fittings.

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Typically used with low-pressure aluminum threaded pipe fittings.

Plastic Pipe and Pipe Fittings for Chemicals

Flame-Retardant PVDF Pipe
Nipples and Pipe for Chemicals

Pipe meets UL 94 V-0 for flame retardance to delay the spread of flames to valuable equipment. It is made of PVDF, which is comparable to Kynar, and has the chemical resistance to stand up to solvents and other harsh substances.

High-Temperature PTFE Pipe
Nipples and Pipe for Chemicals

This PTFE pipe can withstand a wider temperature range than any of our other plastic pipe for chemicals. It is commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

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How to Identify and Measure Fittings

Metal Pipe and Pipe Fittings

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

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

Thick-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

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 Steel Threaded
Pipe Nipples and Pipe

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

Thick-Wall Steel Threaded Pipe Nipples and Pipe

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

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Super-Thick-Wall Steel
Threaded Pipe Nipples and Pipe

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

Low-Pressure Brass and
Bronze Threaded Pipe Fittings

Standard-Wall Brass Threaded
Pipe Nipples and Pipe

Standard-Wall Brass Threaded
Pipe Nipple and Pipe Assortments

Standard-Wall Brass Threaded
Pipe Nipples and Pipe with Sealant

Standard-Wall Chrome-Plated Brass
Threaded Pipe Nipples and Pipe

High-Pressure Brass Threaded
Pipe Fittings with Sealant

High-Pressure Brass Threaded
Pipe Nipples and Pipe with Sealant

High-Pressure Brass Threaded
Pipe Nipples and Pipe

High-Pressure Brass Threaded Pipe
Nipples and Pipe for Drinking Water

High-Pressure Plated Brass
Threaded Pipe Nipples and Pipe

High-Pressure Plated Brass Threaded Pipe Fittings

Thick-Wall Brass Threaded Pipe Nipples and Pipe

Universal-Thread Plated Brass Pipe Fittings

Standard-Wall Aluminum
Unthreaded Pipe Nipples and Pipe

Thick-Wall Aluminum Threaded
Pipe Nipples and Pipe

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Plastic Pipe and Pipe Fittings for Chemicals

Flame-Retardant PVDF Pipe
Nipples and Pipe for Chemicals

High-Temperature PTFE Pipe
Nipples and Pipe for Chemicals

How to Identify and Measure Fittings

Metal Pipe and Pipe Fittings

Standard-Wall Stainless SteelThreaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel ThreadedPipe Nipples and Pipe with Sealant

Thick-Wall Stainless SteelThreaded Pipe Nipples and Pipe

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 Steel ThreadedPipe Nipples and Pipe

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

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Thick-Wall Galvanized Iron and SteelThreaded Pipe Nipples and Pipe

Extra-Thick-Wall Steel ThreadedPipe Nipples and Pipe

Super-Thick-Wall SteelThreaded Pipe Nipples and Pipe

Extra-Thick-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Low-Pressure Brass andBronze Threaded Pipe Fittings

Standard-Wall Brass ThreadedPipe Nipples and Pipe

Standard-Wall Brass ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Brass ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Chrome-Plated BrassThreaded Pipe Nipples and Pipe

High-Pressure Brass ThreadedPipe Fittings with Sealant

High-Pressure Brass ThreadedPipe Nipples and Pipe with Sealant

High-Pressure Brass ThreadedPipe Nipples and Pipe

High-Pressure Brass Threaded PipeNipples and Pipe for Drinking Water

High-Pressure Plated BrassThreaded Pipe Nipples and Pipe

High-Pressure Plated Brass Threaded Pipe Fittings

Thick-Wall Brass Threaded Pipe Nipples and Pipe

Universal-Thread Plated Brass Pipe Fittings

Standard-Wall AluminumUnthreaded Pipe Nipples and Pipe

Thick-Wall Aluminum ThreadedPipe Nipples and Pipe

Standard-Wall AluminumThreaded Pipe Nipples and Pipe

Plastic Pipe and Pipe Fittings for Chemicals

Flame-Retardant PVDF PipeNipples and Pipe for Chemicals

High-Temperature PTFE PipeNipples and Pipe for Chemicals

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

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

Thick-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

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 Steel Threaded
Pipe Nipples and Pipe

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

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

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Super-Thick-Wall Steel
Threaded Pipe Nipples and Pipe

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

Low-Pressure Brass and
Bronze Threaded Pipe Fittings

Standard-Wall Brass Threaded
Pipe Nipples and Pipe

Standard-Wall Brass Threaded
Pipe Nipple and Pipe Assortments

Standard-Wall Brass Threaded
Pipe Nipples and Pipe with Sealant

Standard-Wall Chrome-Plated Brass
Threaded Pipe Nipples and Pipe

High-Pressure Brass Threaded
Pipe Fittings with Sealant

High-Pressure Brass Threaded
Pipe Nipples and Pipe with Sealant

High-Pressure Brass Threaded
Pipe Nipples and Pipe

High-Pressure Brass Threaded Pipe
Nipples and Pipe for Drinking Water

High-Pressure Plated Brass
Threaded Pipe Nipples and Pipe

Standard-Wall Aluminum
Unthreaded Pipe Nipples and Pipe

Thick-Wall Aluminum Threaded
Pipe Nipples and Pipe

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Flame-Retardant PVDF Pipe
Nipples and Pipe for Chemicals

High-Temperature PTFE Pipe
Nipples and Pipe for Chemicals