Reference manual no. 37013-250
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 6145-00-761-2878
NSN 6135-00-062-5080
NSN 6145-01-123-3793
NSN 5985-01-381-6674
NSN 5998-01-009-5107
NSN 5935-01-068-3228
NSN 6150-01-226-9660
NSN 6105-01-512-9862
NSN 5915-00-180-3979
NSN 6650-00-751-9958
NSN 6645-00-963-6354
NSN 5835-00-503-2608