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 5935-01-095-0866
NSN 5975-01-085-5824
NSN 5855-01-533-6734
NSN 5915-01-210-0123
NSN 5855-00-436-3852
NSN 5960-01-108-6636
NSN 6610-01-211-4210
NSN 5935-00-412-0736
NSN 6150-01-041-3726
NSN 2925-00-816-8765
NSN 6110-00-816-0816
NSN 5920-01-269-0445