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 6220-00-707-5044
NSN 6105-01-038-4084
NSN 6645-00-221-7071
NSN 6150-00-185-3293
NSN 5905-01-056-4396
NSN 6110-00-686-4685
NSN 5835-01-193-6192
NSN 6645-01-362-0596
NSN 5930-01-297-6427
NSN 6650-01-246-4262
NSN 6220-01-290-4739
NSN 5960-00-262-0742