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 5930-00-577-8859
NSN 5895-00-188-6798
NSN 5945-01-092-1816
NSN 6645-01-242-4826
NSN 5855-00-939-4496
NSN 6220-00-075-6425
NSN 6685-00-765-1925
NSN 5910-00-319-2719
NSN 5945-01-534-3291
NSN 6135-01-422-1440
NSN 5855-00-782-7714
NSN 5950-01-015-4511