NPSM Nipples | McMaster-Carr

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	Pipe Size Pipe Size

1/8
1/4
3/8
1/2
3/4
1
1 1/2
2
2 1/2
3
4
6

	Thread Type Thread Type	Show

NPSM

	Thread Type Thread Type	Hide

	Type Type

	Adapter
	Connector
	Reducing Adapter

	Shape Shape


Straight	Offset Elbow

	Gender Gender

Male

Female

	Connection Type Connection Type


Pipe	Hose

Tube	Conduit

Electrical Box

	Material Material

	Conduit Trade Size Conduit Trade Size

	Connection Style Connection Style

Threaded

Barbed

Quick Disconnect

	For Use With For Use With

	System of Measurement System of Measurement

Inch

	For Hose ID For Hose ID

	Thread Size Thread Size

	Conduit Type Conduit Type

GRC

IMC

Rigid

	Length Length

	For Knockout Trade Size For Knockout Trade Size

	Flexibility Flexibility

	Rigid

	Maximum Pressure Maximum Pressure

	Specifications Met Specifications Met

ANSI/ASME

ASTM

CSA

SAE

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Body Shape Body Shape

	Hex

	Barbed Connection Type Barbed Connection Type

	Clamp On
	Crimp On
	Push On

	Dash Size Dash Size

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113 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.

Medium-Pressure Brass and
Bronze Threaded Pipe Fittings

Choose these fittings when you need better strength than our low-pressure brass and bronze pipe fittings.

Metal Barbed Hose
Fittings for Air and Water

Metal hose fittings have better durability than plastic barbed hose fittings.

Metal Push-On Barbed Hose
Fittings for Air and Water

Fittings are metal for better durability than plastic barbed hose fittings. They have sharper barbs than standard barbed hose fittings to grip push-on hose without the need for clamps or ferrules. The more you pull on the fittings, the tighter the hose will grip.

Tight-Seal Barbed Hose
Fittings for Air and Water

Also known as ball-seat hose nipples, these fittings consist of a barbed shaft with a rounded end that sits inside a female threaded nut. When mated with a male threaded fitting, the rounded end presses tightly against the inside of the male threads for a better seal than a single-piece fitting. Once assembled, insert the barbed end into hose and secure with a clamp or a crimp-on hose ferrule.

Threaded Hose Fittings
for Hydraulic Fluid

Fittings are threaded on both ends so you can connect them directly to a threaded hose or to pumps, cylinders, and other equipment in your hydraulic system. Use in high-pressure applications up to 6,000 psi

Quick-Disconnect Hose
Couplings for Coolant

Couplings consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. They are designed for coolant applications up to 200 psi. Also known as coolant-line mold couplings.