Material is steel, federal standard no. 66; steel no.S 1008 to 1022
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 5985-01-327-3601
NSN 7035-01-106-3476
NSN 6145-01-264-6037
NSN 6135-00-016-0071
NSN 6150-01-332-6832
NSN 6320-01-539-3156
NSN 5996-01-633-7979
NSN 5895-01-287-2102
NSN 5965-01-618-5924
NSN 5945-01-024-3827
NSN 5835-00-967-0998
NSN 5935-01-317-6823