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 6220-00-338-1086
NSN 5996-01-323-6008
NSN 5996-01-220-7261
NSN 6610-01-173-0465
NSN 6145-01-581-6020
NSN 6135-01-205-5965
NSN 5930-00-078-7362
NSN 6685-01-598-5130
NSN 6685-01-551-1293
NSN 5965-01-053-7168
NSN 5895-01-332-9205
NSN 7035-01-528-7340