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 5935-00-360-1968
NSN 6130-00-148-8342
NSN 6105-00-419-3174
NSN 6110-00-699-1495
NSN 5999-01-243-2808
NSN 6220-01-573-1094
NSN 5965-00-854-2075
NSN 6645-00-258-8547
NSN 6645-01-488-5466
NSN 5835-00-264-0946
NSN 5950-01-205-5166
NSN 5895-01-382-9755