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 5915-01-029-4128
NSN 6240-01-461-8193
NSN 5996-00-917-6899
NSN 5996-01-213-5184
NSN 5935-01-194-0081
NSN 5996-01-386-4230
NSN 6105-01-032-5168
NSN 6220-01-004-8909
NSN 5910-01-586-5485
NSN 5975-00-331-8200
NSN 5915-01-035-1521
NSN 6105-00-981-1335