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 6110-01-529-6338
NSN 5996-00-990-2192
NSN 5990-00-067-6791
NSN 5915-00-205-1420
NSN 5998-01-242-6212
NSN 5925-01-481-3442
NSN 6110-01-248-6174
NSN 5996-00-191-2133
NSN 5905-01-056-5434
NSN 5965-00-647-3972
NSN 5895-01-136-1195
NSN 5950-01-101-5159