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 5960-01-477-9997
NSN 5935-01-607-9739
NSN 5920-01-188-8833
NSN 5895-01-415-3114
NSN 5945-01-576-8113
NSN 5998-00-540-8065
NSN 6650-01-487-0908
NSN 6650-01-100-0933
NSN 5965-00-285-0745
NSN 6645-00-133-1536
NSN 6145-01-421-5109
NSN 5895-01-112-9000