Iron and Steel Pipe-to-Pipe Adapters | McMaster-Carr

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Hose Coupling Size-Identification Kits

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Manual On/Off Valves

Pipe and Fittings

Pipe Bleed Rings

System of Measurement

Pipe Size

Fitting Type

Reducing Adapter

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Shape

Side-Outlet Elbow

Side-Outlet Tee

Pipe Schedule

Length

Fitting Connection

Spec Image

Spec Image

O-Ring Face Seal

Quick Disconnect

Spec Image

For Use With

Calcium Chloride

Hydraulic Fluid

Gender

Threading

Threaded on Both Ends

Threaded on One End

Pressure Class

Pipe Material

Stainless Steel

Connects To

Corrugated Pipe

Maximum Pressure @ Temperature

15 psi @ 72° F

50 psi @ 72° F

75 psi @ 72° F

100 psi @ 72° F

120 psi @ 72° F

125 psi @ 72° F

130 psi @ 72° F

140 psi @ 72° F

145 psi @ 72° F

150 psi @ 72° F

165 psi @ 72° F

175 psi @ 72° F

185 psi @ 72° F

200 psi @ 72° F

225 psi @ 72° F

230 psi @ 72° F

240 psi @ 72° F

Fitting Material

Flange Material

ID

Specifications Met

ANSI LC 4/CSA 6.32

OD

9/16" to 21/32"

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

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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

Low-Pressure Iron and Steel Threaded Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

Extreme-Pressure Iron and Steel Threaded Pipe Fittings

Extreme-Pressure Iron and Steel Threaded Pipe Fittings

Our strongest iron and steel threaded fittings withstand pressures up to 7,500 psi

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

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

High-Pressure Iron and Steel Threaded Pipe Fittings

High-Pressure Iron and Steel Threaded Pipe Fittings

Strong enough for pressures up to 6,000 psi

Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

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

SAE High-Pressure Iron and Steel Threaded Two-Piece Pipe Flanges

SAE High-Pressure Iron and Steel Threaded Two-Piece Pipe Flanges

Pair with an adapter to build a custom access point in hydraulic lines up to 3,000 psi

FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings

FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings

Connect threaded pipe in fire water mains and sprinkler systems

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

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

Our strongest threaded pipe for handling extreme pressures; also known as Schedule XXH

Thick-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Thick-Wall Iron and Steel Threaded Pipe Nipples and Pipe

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

Medium-Pressure Iron and Steel Threaded Pipe Fittings

Medium-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

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

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

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

Low-Pressure Iron and Steel Threaded Pipe Flanges

Low-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in lines up to 285 psi; also known as Class 150 flanges

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

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

Threads have sealant applied for extra leak protection in low-pressure lines; known as Schedule 40

High-Pressure Iron and Steel Threaded Pipe Flanges

High-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in lines up to 1,400 psi; also known as Class 300 or Class 600 flanges

FM-Approved Low-Pressure Iron and Steel Threaded Pipe Flanges

FM-Approved Low-Pressure Iron and Steel Threaded Pipe Flanges

Add an access point to fire water mains and sprinkler systems

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

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

SAE High-Pressure Iron and Steel Threaded Pipe Flanges

SAE High-Pressure Iron and Steel Threaded Pipe Flanges

Add an access point in hydraulic lines up to 3,000 psi; also known as Code 61 SAE hydraulic flanges

SAE Extreme-Pressure Iron and Steel Threaded Two-Piece Pipe Flanges

SAE Extreme-Pressure Iron and Steel Threaded Two-Piece Pipe Flanges

Pair with an adapter for a custom access point in hydraulic lines up to 6,000 psi

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

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

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

Extreme-Pressure Iron and Steel Threaded Pipe Flanges

Extreme-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in extreme-pressure lines; also known as Class 1500 flanges

High-Pressure Iron and Steel Threaded Pipe Fitting Assortments

High-Pressure Iron and Steel Threaded Pipe Fitting Assortments

Keep various sizes of high-pressure caps and plugs on hand

Iron and Steel Unthreaded Pipe and Fittings

High-Pressure Iron and Steel Butt-Weld Pipe Fittings

High-Pressure Iron and Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in high-pressure lines

High-Pressure Iron and Steel Socket-Connect Pipe Fittings

High-Pressure Iron and Steel Socket-Connect Pipe Fittings

Easier to weld than butt-weld fittings and withstand pressures up to 3,000 psi

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

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

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

Low-Pressure Iron and Steel Press-Socket Pipe Fittings

Low-Pressure Iron and Steel Press-Socket Pipe Fittings

Crimp onto pipe for a leak-free connection that's faster than threading or welding

Standard-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Standard-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

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

Low-Pressure Iron and Steel Butt-Weld Pipe Fittings

Low-Pressure Iron and Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in low-pressure lines

Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in lines up to 230 psi

High-Pressure Iron and Steel Unthreaded Pipe Flanges

High-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in lines up to 1,400 psi; also known as Class 300 or Class 600 flanges

Thick-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Thick-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

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

Extreme-Pressure Iron and Steel Socket-Connect Pipe Fittings

Extreme-Pressure Iron and Steel Socket-Connect Pipe Fittings

Our strongest iron and steel unthreaded fittings withstand pressures up to 6,000 psi

Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges

Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in extreme-pressure lines; also known as Class 1500 flanges

FM-Approved Standard-Wall Iron and Steel Grooved-End Pipe Nipples and Pipe

FM-Approved Standard-Wall Iron and Steel Grooved-End Pipe Nipples and Pipe

Clamp to fittings for quick access to fire water mains and sprinkler systems

Medium-Pressure Iron and Steel Butt-Weld Pipe Fittings

Medium-Pressure Iron and Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in medium-pressure lines

SAE High-Pressure Iron and Steel Unthreaded Pipe Flanges

SAE High-Pressure Iron and Steel Unthreaded Pipe Flanges

Add an access point in hydraulic lines up to 3,000 psi; also known as Code 61 SAE hydraulic flanges

Ultra-Thick-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Ultra-Thick-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Our strongest unthreaded pipe for handling extreme pressures; also known as Schedule XXH

FM-Approved Low-Pressure Iron and Steel Flanged-End Pipe Fittings

FM-Approved Low-Pressure Iron and Steel Flanged-End Pipe Fittings

Mate with flat-surface flanges, pumps, and valves to add an access point in fire-protection systems

Low-Pressure Iron and Steel Compression Pipe Fittings

Low-Pressure Iron and Steel Compression Pipe Fittings

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

FM-Approved Low-Pressure Iron and Steel Unthreaded Pipe Flanges

FM-Approved Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Add an access point to fire water mains and sprinkler systems

Galvanized Iron and Steel Threaded Pipe and Fittings

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings with Sealant

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

Precision Extreme-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

Precision Extreme-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

The tightest tolerances of our iron and steel fittings; also known as instrumentation fittings

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

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

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

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

High-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

High-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

Strong enough for pressures up to 3,000 psi

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

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

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

Medium-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

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

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

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

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

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

Low-Pressure Galvanized Iron and Steel Threaded Pipe Flanges

Low-Pressure Galvanized Iron and Steel Threaded Pipe Flanges

Create an access point in lines up to 285 psi; also known as Class 150 flanges

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

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

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

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

High-Pressure Galvanized Iron and Steel Threaded Pipe Flanges

High-Pressure Galvanized Iron and Steel Threaded Pipe Flanges

Create an access point in high-pressure lines; also known as Class 300 flanges

Drain, Waste, and Vent Pipe and Fittings

Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Clamp onto pipe for a strong seal and easy assembly

Drain, Waste, and Vent Iron and Steel Pipe Fittings

Drain, Waste, and Vent Iron and Steel Pipe Fittings

Durable enough for pipe systems above and below ground; also called no-hub and soil pipe fittings

Cut-to-Length Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Cut-to-Length Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Cut to the length you need to connect pipe up to 100 ft. apart

Galvanized Iron and Steel Unthreaded Pipe and Fittings

Low-Pressure Galvanized Iron and Steel Clamp-On Pipe Fittings

Low-Pressure Galvanized Iron and Steel Clamp-On Pipe Fittings

Tighten the bolts to join pipe in air, vacuum, and gravity-flow systems up to 15 psi

Low-Pressure Galvanized Iron and Steel Compression Pipe Fittings

Low-Pressure Galvanized Iron and Steel Compression Pipe Fittings

Tighten by hand for quick, leak-free connections in lines up to 125 psi

Plastic Pipe and Fittings

Standard-Wall Plastic Pipe Fittings for Water

Standard-Wall Plastic Pipe Fittings for Water

The industry standard for low-pressure water lines; also known as Schedule 40

Thick-Wall Plastic Pipe Fittings for Water

Thick-Wall Plastic Pipe Fittings for Water

Withstand heavy duty applications, such as water processing; also known as Schedule 80

Low-Pressure Plastic Compression Pipe Fittings for Water

Low-Pressure Plastic Compression Pipe Fittings for Water

Tighten by hand for quick, leak-free connections in lines up to 125 psi

Easy-Access CPVC Pipe Fittings for Chemicals

Easy-Access CPVC Pipe Fittings for Chemicals

Connect to pipe with a clamp for quick access to chemical-process lines; known as Victaulic fittings

Stainless Steel Unthreaded Pipe and Fittings

Easy-Access Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Easy-Access Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Turn the T-handle to tighten and loosen without tools

Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Clamp onto pipe for a strong seal and easy assembly

Low-Pressure Stainless Steel Compression Pipe Fittings

Low-Pressure Stainless Steel Compression Pipe Fittings

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

Other Products

Hose Coupling Size-Identification Kits

Hose Coupling Size-Identification Kits

Match your hose coupling to one of the plugs to determine its size without measuring

Hose Fittings

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

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

Pipe Stub Ends

Connect a pipe flange to a pipe without needing to weld it in place

Manual On/Off Valves

Manual On/Off Valves

Start and stop flow through a line

Pipe Bleed Rings

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

Hose Kink Absorbers

Hose Kink Absorbers

Prevent hose from kinking to ensure maximum flow and extend hose life

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)