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 5990-00-933-0526
NSN 6105-00-754-8248
NSN 5985-00-951-3698
NSN 5895-01-441-2479
NSN 6110-00-095-6418
NSN 5945-00-246-5740
NSN 5925-01-605-3888
NSN 6105-00-222-4762
NSN 5925-00-789-3718
NSN 5985-00-986-0967
NSN 5915-01-111-9971
NSN 5996-00-293-4687