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 6105-01-344-3768
NSN 6105-01-514-7310
NSN 6110-01-352-4891
NSN 6320-01-564-0893
NSN 5996-01-215-0944
NSN 5915-01-572-1126
NSN 5950-01-565-0460
NSN 5998-01-206-3756
NSN 5996-00-179-9583
NSN 6110-01-090-0417
NSN 5925-01-365-3977
NSN 5975-00-045-1715