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 5960-00-552-9500
NSN 5985-01-571-7959
NSN 6320-01-612-7035
NSN 6685-00-825-1831
NSN 5965-01-657-1503
NSN 5835-00-106-2120
NSN 5910-00-942-6796
NSN 5835-01-084-6997
NSN 5915-01-647-4236
NSN 5965-01-419-2251
NSN 6110-00-834-7801
NSN 5910-01-182-3263