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 6105-00-307-3690
NSN 5996-01-574-0898
NSN 6240-01-099-8826
NSN 6645-01-457-8642
NSN 5895-00-358-1922
NSN 5965-01-486-1222
NSN 6150-01-322-8430
NSN 5910-01-633-9963
NSN 5920-01-512-4097
NSN 5905-01-479-4450
NSN 6610-00-835-7683
NSN 6610-00-918-3389