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 5925-01-431-5159
NSN 7035-00-570-4100
NSN 5935-00-194-1005
NSN 5895-01-614-1472
NSN 5835-01-452-4947
NSN 5835-01-618-1225
NSN 5985-01-467-7025
NSN 6685-01-312-6085
NSN 5996-01-503-5642
NSN 5999-01-322-4906
NSN 5935-00-353-0865
NSN 5965-00-285-0745