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 5895-00-014-6706
NSN 5915-01-446-7238
NSN 5935-00-548-3288
NSN 5950-01-485-0246
NSN 5945-01-170-5667
NSN 6145-00-421-6874
NSN 5960-01-192-7710
NSN 5905-01-463-3044
NSN 5855-01-388-4345
NSN 5960-01-407-1350
NSN 6145-00-833-3419
NSN 5990-01-217-4590