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 5855-00-586-6255
NSN 5950-01-613-5688
NSN 6105-00-830-2029
NSN 5965-01-485-3167
NSN 5835-00-196-9771
NSN 5920-01-194-9541
NSN 5998-00-056-6626
NSN 5996-01-581-4160
NSN 5950-01-503-9805
NSN 6685-00-580-7012
NSN 6240-01-420-6495
NSN 6685-01-634-0611