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 6150-00-468-4265
NSN 5935-01-353-9178
NSN 6145-01-062-2568
NSN 5998-00-155-6002
NSN 5985-00-675-1095
NSN 5999-01-541-5455
NSN 5950-01-634-0677
NSN 6620-01-571-7727
NSN 5935-01-423-9463
NSN 2925-00-491-3549
NSN 6105-01-254-6210
NSN 5996-01-646-2465