SKU: 49181188741

3.5" NH (NST) Female x 4" NPSH Male Adapter Aluminum

Sale price$133.98 Regular price$148.87
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Description

3.5" NH (NST) Female x 4" NPSH Male Adapter AluminumSpecifications Female Side 1 3. 5 NH (NST) Female (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

Specifications

  • Female Side 1 – 3.5” NH (NST) Female (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

Industrial & Fire 3.5” NH (NST) Female x 4" NPSH Male Fitting Anodized Aluminum

Need a female to male 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 Female To Male Adapters

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

Pipe & hose adapter is a length of straight or tapered pipe with male or female 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 adapters 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 adapters are recommended for low-pressure discharge and suction service for various compatible liquids and not for compressible products like air, nitrogen or steam. 

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. 

A pipe coupling is any fitting or device used to join two or more pipes in such a way that continuity is maintained between them. The body of a pipe coupling is typically made of the same or similar materials as those used to construct the pipes it joins. They may be rigid or flexible depending on the amount of movement the pipe is subjected to and may per permanent or removable fixtures. A pipe coupling can be stepped or reduced in internal diameter to accept pipes of different sizes, be T or cross shaped to join more than two pipes, or angled to form bends. Pipe couplings may also include peripheral features or equipment such as inspection openings, flow meters, or valves.

Our Guarantee

We 100% guarantee our brass adapters.  If you are unhappy with your purchase you can return it within 30 days NO QUESTIONS ASKED!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 49181188741

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★★★★★ 5
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Reviewed in the United States on May 27, 2026
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antiope
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★★★★★ 5
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I am now on my second set of these pillowcases, and I can’t recommend them enough. I have extreme skin sensitivities; anything even slightly rough against my face will give me a rash. These are incredibly smooth and have been a total game-changer for my skin. I love them so much that I actually travel with one to put over hotel pillows whenever I’m away from home. The best part? I didn’t want to pay a fortune or deal with "hand-wash only" items. I throw these in the washer and they come out perfectly every time. They maintain their color and don’t lose that elegant sheen.
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