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 6645-01-248-8033
NSN 6150-01-180-9882
NSN 5910-01-540-1289
NSN 5915-00-892-3011
NSN 5965-00-722-7574
NSN 5920-00-986-3922
NSN 5905-01-495-1087
NSN 6645-01-088-5244
NSN 5985-00-849-3786
NSN 6135-00-635-9187
NSN 5965-00-807-9159
NSN 5965-01-424-9946