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 5930-01-496-9655
NSN 6220-00-485-1428
NSN 5895-01-383-0240
NSN 6135-01-156-4627
NSN 6320-01-567-9792
NSN 5910-01-184-7291
NSN 6685-00-056-9838
NSN 6240-01-328-9749
NSN 6135-00-078-9931
NSN 5915-01-160-7123
NSN 5960-01-471-8201
NSN 5990-00-155-2306