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 6620-01-656-4535
NSN 5915-01-572-8391
NSN 5985-01-474-8176
NSN 5905-00-165-3284
NSN 5835-01-541-9991
NSN 5915-01-156-1160
NSN 5935-01-628-5930
NSN 5960-01-103-5476
NSN 5925-00-324-2246
NSN 5835-01-191-3405
NSN 5950-01-576-9658
NSN 6130-00-003-3785