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 6645-01-103-8449
NSN 6685-00-815-8869
NSN 6150-00-342-9765
NSN 6240-01-422-1878
NSN 6145-00-905-5374
NSN 5960-01-411-5217
NSN 6685-01-393-1280
NSN 6150-01-192-3092
NSN 6110-01-168-8600
NSN 5855-00-482-9876
NSN 5998-01-525-0927
NSN 6150-00-377-8616