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 6150-00-833-5004
NSN 5998-01-396-2583
NSN 6130-00-712-0431
NSN 5998-01-017-9922
NSN 5935-01-634-0668
NSN 5935-01-519-8606
NSN 5855-01-520-5873
NSN 6320-01-136-8505
NSN 6150-01-462-0202
NSN 6220-01-043-6168
NSN 6320-01-512-2031
NSN 5925-01-004-9293