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 5998-00-248-8587
NSN 5990-00-161-2797
NSN 5965-01-437-5934
NSN 5905-01-076-7946
NSN 6610-00-226-4710
NSN 5930-01-018-5170
NSN 5960-01-084-4987
NSN 6150-01-512-9830
NSN 5950-00-629-8972
NSN 5895-01-197-2930
NSN 5910-01-419-8620
NSN 5835-01-578-3443