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 5855-00-688-9954
NSN 5930-01-385-0271
NSN 5905-00-924-9213
NSN 5835-01-473-1620
NSN 5910-01-210-0082
NSN 5925-00-938-3447
NSN 4140-00-254-7257
NSN 6110-01-372-2892
NSN 5999-01-428-5911
NSN 7035-01-114-3134
NSN 5895-00-152-0104
NSN 5935-00-279-0800