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 5935-00-091-9539
NSN 5910-00-142-5020
NSN 5930-00-189-1480
NSN 6105-00-686-1732
NSN 5965-01-234-6844
NSN 5930-01-544-2255
NSN 6650-00-498-6336
NSN 5998-01-508-8237
NSN 5965-01-651-8613
NSN 6610-01-468-0679
NSN 5935-01-204-9546
NSN 5960-00-927-6716