Angle one to two degree
A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.
Classification: Parts for steam or other vapor generating boilers and super-heated water boilers, except heat exchangers
NSN 6150-01-451-2558
NSN 5915-01-493-5957
NSN 5945-01-211-6085
NSN 5935-00-822-8037
NSN 6650-01-246-4262
NSN 5855-01-518-5278
NSN 5855-00-149-0766
NSN 6130-01-350-3585
NSN 5965-01-270-6832
NSN 6220-01-318-0054
NSN 5925-00-522-2593
NSN 5895-00-884-6258