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 5935-01-068-4416
NSN 6685-01-416-2616
NSN 6220-01-468-3701
NSN 5999-01-202-6585
NSN 5998-00-903-4137
NSN 6610-00-118-7629
NSN 6685-01-073-3416
NSN 5935-01-481-2634
NSN 5895-00-891-2291
NSN 6650-01-083-3707
NSN 5910-01-461-7800
NSN 5999-01-062-0302