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 5925-01-590-2513
NSN 5990-00-764-1824
NSN 5855-01-624-7115
NSN 6320-01-388-3125
NSN 5999-01-563-4826
NSN 5945-01-657-9798
NSN 7035-01-449-4668
NSN 6110-00-984-4273
NSN 6145-01-406-5051
NSN 5990-00-292-5017
NSN 5965-01-544-7577
NSN 2925-00-890-3240