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 5950-01-023-9365
NSN 6105-01-526-9675
NSN 6620-01-337-9070
NSN 6645-01-453-6184
NSN 6145-01-366-7146
NSN 5950-01-641-1760
NSN 7035-01-578-6232
NSN 6145-01-474-5459
NSN 5975-00-099-9312
NSN 6650-00-627-1084
NSN 6130-01-634-0603
NSN 5998-00-166-0758