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 5965-01-010-1258
NSN 5935-01-530-0641
NSN 5965-01-363-9310
NSN 5895-01-076-2854
NSN 6150-00-288-6245
NSN 6110-01-201-0471
NSN 6135-01-633-8502
NSN 5965-00-997-5764
NSN 5945-01-597-7568
NSN 6150-01-525-6945
NSN 6145-00-091-1079
NSN 5910-01-346-0771