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 5895-00-010-7841
NSN 5975-01-030-3601
NSN 5925-01-430-2318
NSN 6610-00-430-5208
NSN 5835-01-469-6706
NSN 6145-01-364-0346
NSN 5905-01-434-5939
NSN 6650-01-434-6434
NSN 5910-00-848-7397
NSN 7035-01-155-9025
NSN 6145-00-947-5883
NSN 5935-00-732-7982