NPSH Nipples | McMaster-Carr

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System of Measurement

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Thread Type

UN/UNF (SAE Straight)

Fitting Type

Gender

Material

Fire Hose Trade Size

Shape

Connects To

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For Use With

Hose ID

Lug Style

Rocker

Maximum Pressure @ Temperature

150 psi @ 72° F

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

REACH

Not Compliant

RoHS

Compliant

Compliant with Exemptions

Number of Barbs

Maximum Temperature

Barb Style

Attachment Type

Band-and-Buckle Clamp

Specifications Met

SAE J476

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20 Products

About Measuring Fittings

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

About Fire-Fighting Hose Threads

Metal Barbed Hose Fittings for Air and Water

Slide the barbed end into rubber hose and secure with the appropriate clamp or crimp-on hose ferrule.

Brass fittings are softer than other metal fittings, so they’re easier to thread together. Plain brass fittings have good corrosion resistance. Fittings that swivel until tightened rotate 360° for easy installation. Fittings with a threaded end are also known as hose nipples.

NPSH (National Pipe Straight Hose) female threads are compatible with male NPT, NPTF, and NPSM threads.

Straight Adapters, Hose × NPSH Male Threaded Hose

Maximum Pressure: 150 psi @ 72° F
Temperature Range: -40° to 160° F
Attachment Type: Use Band-and-Buckle Clamps
Specifications Met: SAE J476

Brass
For Hose ID	Pipe Size	Pkg. Qty.		Pkg.
1"	1	1	5365K71	000000

Straight Adapters (Swivels Until Tightened), Hose × NPSH Female Threaded Hose

NPT/NPTF, Metric, BSPP, and
UN/UNF (SAE Straight)
Male Threads with Gasket

Maximum Pressure: 150 psi @ 72° F
Temperature Range: -40° to 160° F
Attachment Type: Use Band-and-Buckle Clamps
Specifications Met: SAE J476

Brass
For Hose ID	Pipe Size	Gasket Material	Pkg. Qty.		Pkg.
1"	1	SBR Rubber	1	5365K81	000000

Fire-Fighting Hose Fittings

Connect these fittings to fire hydrants and washdown equipment. Made of brass, they have good corrosion resistance. Some have a hex in the middle so you can tighten them with a wrench.

NH/NST (National Hose/National Standard) threads are only compatible with other NH/NST threads. Male NPSH (National Pipe Straight Hose) threads are compatible with female NPSH threads. Female NPSH threads are compatible with male NPSH, NPT, NPTF, and NPSM threads.

Straight Adapters, NH/NST Male Threaded Hose × NPSH Male Threaded Hose

Fire Hose Trade Size	Pipe Size	Material		Each
1 1/2	1 1/2	Brass	6523T51	000000

Straight Adapters, NH/NST Male Threaded Hose × NPSH Female Threaded Hose

Fire Hose Trade Size	Pipe Size	Material		Each
1 1/2	1 1/2	Brass	6523T12	000000

Straight Adapters, NPSH Male Threaded Hose × NH/NST Female Threaded Hose

Pipe Size	Fire Hose Trade Size	Material		Each
1 1/2	1 1/2	Brass	6523T25	000000

Straight Adapters, NPSH Male Threaded Hose × NPT Male Threaded Pipe

Pipe Size	Material		Each
1	Brass	6523T101	000000
1 1/2	Brass	6523T23	00000

Straight Adapters, NPT Male Threaded Pipe × NPSH Female Threaded Hose

Pipe Size	Material		Each
1 1/2	Brass	6523T38	000000

Straight Reducing Adapters, NPT Male Threaded Pipe × NPSH Female Threaded Hose

Pipe Size
(A)	(B)	Material		Each
1 1/2	3/4	Brass	6523T62	000000

Rocker-Lug Fire-Fighting Hose Fittings

The rocker lugs on these fittings allow for easy gripping, so you can quickly connect to fire hydrants and washdown equipment. Tighten with a hook-style spanner wrench (sold separately).

Fittings that swivel until tightened rotate to help prevent kinking during installation.

Aluminum fittings are more lightweight than brass fittings. They have good abrasion and corrosion resistance. Brass fittings are softer than aluminum fittings, so they’re easier to thread together. They have good corrosion resistance.

Straight Adapters, NH/NST Male Threaded Hose × NPSH Female Threaded Hose

Brass
Fire Hose Trade Size	Pipe Size		Each
1 1/2	1 1/2	6524T17	000000

Straight Adapters, NPT Male Threaded Hose × NPSH Male Threaded Hose

Aluminum
Pipe Size		Each
1 1/2	6524T31	000000

Straight Adapters, NPT Male Threaded Hose × NPSH Female Threaded Hose

Aluminum
Pipe Size		Each
2	6524T35	000000

Straight Adapters (Swivels Until Tightened), NPT Female Threaded Hose × NPSH Female Threaded Hose

Aluminum
Pipe Size		Each
1 1/2	6524T43	000000

Straight Connectors (Swivels Until Tightened), NPSH Female Threaded Hose

Aluminum
Pipe Size		Each
1 1/2	6524T41	0000000

Straight Reducing Adapters, NH/NST Male Threaded Hose × NPSH Female Threaded Hose

Brass
Fire Hose Trade Size (A)	Pipe Size (B)		Each
1 1/2	2 1/2	6524T14	000000

Straight Reducing Adapters, NPSH Male Threaded Hose × NH/NST Female Threaded Hose

Brass
Pipe Size (A)	Fire Hose Trade Size (B)		Each
1 1/2	2 1/2	6524T24	000000

Straight Reducing Adapters, NPSH Male Threaded Hose × NPSH Female Threaded Hose

Pipe Size
(A)	(B)		Each
Brass
1 1/2	2 1/2	6524T12	000000
Aluminum
1 1/2	2	6524T34	00000

Pin-Lug Fire-Fighting Hose Fittings

The pin lugs on these fittings allow for easy gripping, so you can quickly connect to fire hydrants and washdown equipment. Tighten with a hook-style spanner wrench (sold separately). All are brass for good corrosion resistance.

NH/NST (National Hose/National Standard) threads are only compatible with other NH/NST threads.

Straight Adapters, NH/NST Male Threaded Hose × NPSH Female Threaded Pipe

Fire Hose Trade Size	Pipe Size	Material		Each
1 1/2	1 1/2	Brass	6494T11	000000

Straight Adapters, NPSH Male Threaded Pipe × NH/NST Female Threaded Hose

Pipe Size	Fire Hose Trade Size	Material		Each
1 1/2	1 1/2	Brass	6494T13	000000