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 5930-00-406-4777
NSN 5998-01-322-4850
NSN 6135-00-906-0984
NSN 6150-01-534-8213
NSN 6650-00-241-0970
NSN 6130-00-208-2906
NSN 5910-00-293-2389
NSN 5910-01-011-1740
NSN 6685-00-844-2231
NSN 5996-01-064-4868
NSN 6145-01-062-6917
NSN 5945-00-905-8324