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 5835-01-193-6192
NSN 5985-00-019-6317
NSN 5960-01-518-4440
NSN 5960-01-238-7367
NSN 5925-00-932-0108
NSN 6145-00-045-7684
NSN 5910-00-601-4149
NSN 5935-01-012-2565
NSN 6610-00-477-7931
NSN 5915-01-461-3089
NSN 5999-00-950-3161
NSN 6110-01-414-3500