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 6650-00-754-2276
NSN 5996-01-534-8862
NSN 5935-01-468-5264
NSN 5920-00-413-3341
NSN 6220-00-420-8166
NSN 6240-00-942-5018
NSN 7035-00-111-4389
NSN 5930-00-956-4932
NSN 5960-01-112-2321
NSN 6145-00-078-9917
NSN 6650-01-658-1748
NSN 6145-01-617-0355