which make both ideal for hose couplings. Warning - It will NOT thread into a female NPT pipe. For example. just like NH / NST, Aluminum 1' NPSH to 1' NPT Double Male Fire Hose Adapter: Industrial & Scientific. Aluminum 1" NPSH to 1" NPT Double Male Fire Hose Adapter: Industrial & Scientific. Made in the USA 。 Side 1: Male 1 inch NPSH 。 Side 1: Will Only Connect To A Female 1 inch NPSH 。 Side 2: Male 1 inch NPT 。 Side 2: Will Only Connect To A Female 1 inch NPT or NPSH 。 Material - 606-T6 Aluminum。Finish - Hard Coat Anodized。Complies With NFPA 963 (Corrosion Resistance)。99.95% Lead Free。The Safe Water Drinking Act section 47 requires "Lead Free" products to be a minimum of 99.75% lead free.。Aluminum adapters are fabricated from seamless extruded 606-T6 aluminum and hard coat anodized per MIL-A-8625 Type III. Class . Threads have a blunt start Higbee cut with indicators on adjacent lugs. Part identifications are permanent and stamped prior to hardcoat. Adapters and components meet the requirements of NFPA 963.。NH / NST: The most common thread type in use by fire departments today is NST or National Standard Thread. NST also goes by the initials NH or National Hose. It can even be referred to as NHT or National Hose Thread but NST or NH is more common these days. NH = NST.。NPSH: National Pipe Straight Hose (NPSH) or Iron Pipe Thread (IPT) has the same threads per inch (TPI) as National Pipe Tapered (NPT) but the thread does not taper. NPSH is a straight thread and seals by a gasket in the female coupling which allows for a swivel, a male NPSH coupling will NOT thread into a female metal or pvc pipe.。NPT: National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. As its name implies this is a tapered thread so that the outside diameter of the male (ODM) gets smaller towards the end of the fitting and the inside diameter of the female narrows with depth. As the two fittings are threaded together the opposite tapers force thread friction and makes the seal without the use of a gasket.。.
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