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 6130-00-235-7830
NSN 5935-01-212-9729
NSN 6105-01-422-0510
NSN 5910-00-068-3883
NSN 5910-01-127-7340
NSN 6685-01-485-2314
NSN 6685-01-094-3340
NSN 5905-00-349-9908
NSN 6220-01-263-3899
NSN 5965-00-317-1679
NSN 5835-00-228-9082
NSN 5915-00-186-0463