3" NH (NST) Male x 4" NPSH Male Adapter Aluminum

3" NH (NST) Male x 4" NPSH Male Adapter AluminumSpecifications Male Side 1 3 NH (NST) Male (National Hose National Standard Thread) Male Side 2 4 NPSH Male (National Pipe Straight Hose) Working Pressure 300PSI Max Test Pressure 1000PSI Max Material T 6061 Aluminum (Aircraft Grade) Finishing Anodized (99. 9% Lead Free) NFPA Standards 1963, 4. 12, 5. 1 5. 6. 4 (Corrosion Resistance) Military Standards MIL A 8625 Type III, Class 1 Industrial Standards International ASTM B221 UL Labs Standards 236 8. 1

Specifications

• Male Side 1 – 3” NH (NST) Male (National Hose / National Standard Thread)
• Male Side 2 – 4” NPSH Male (National Pipe Straight Hose)
• Working Pressure – 300PSI Max
• Test Pressure – 1000PSI Max
• Material – T-6061 Aluminum (Aircraft Grade)
• Finishing – Anodized (99.9% Lead Free)
• NFPA Standards - 1963, 4.12, 5.1-5.6.4 (Corrosion Resistance)
• Military Standards – MIL-A-8625 Type III, Class 1
• Industrial Standards – International ASTM B221
• UL Labs Standards – 236 – 8.1 Through 8.2
• USDA Standards – 5100-190C Tables 1-4
• Origin – Made In The USA
• Warranty – 5 Year Manufacture

Fire & Industrial 3” NH (NST) x 4” NPSH Double Male Fitting Anodized Aluminum

Need a double male fire hose adapter?  Look no further, this adapter will get the job done in any situation.  Adapters manufactured in the USA with hard-coated anodized aluminum are made to withstand abrasion, are anti-corrosive, and can withstand the highest pressures.  You can trust that these adapters will meet and EXCEED your industrial and municipal needs. 

More About Double Male Adapters

A pipe/hose fitting adapter is used to connect straight pipe or hose sections, to adapt to different sizes or shapes, and for other purposes. 

Pipe nipple is a length of straight pipe with male threads on both ends. It is one of the most popular category of pipe & hose fittings. It is a connector or a coupling threaded on both ends. Pipe nipples are used to allow items with different threads to be connected together. They are used to fit straight / tapered end hose or pipes. A combination of pipe nipples are recommended for low-pressure discharge and suction service for various compatible liquids and not for compressible products like air, nitrogen or steam. 

A coupling (or coupler) (used in piping or plumbing) is a very short length of pipe or tube, with a socket at one or both ends that allows two pipes or tubes to be joined, welded (steel), brazed or soldered (copper, brass etc.) together.

Alternatively if a short length of pipe with two female National pipe threads (NPT) (in North American terms, a coupler is a double female while a nipple is double male) or two male or female.

If the two ends of a coupling are different (e.g. one NST/NH threaded and one NPT threaded), then it is usually referred to as an adapter. 

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