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 5975-00-135-7892
NSN 7035-01-053-4769
NSN 5905-01-385-3269
NSN 5895-01-555-8544
NSN 5985-00-079-0598
NSN 6650-00-968-5700
NSN 6145-00-232-0813
NSN 5905-01-272-7412
NSN 6145-00-873-4808
NSN 5930-01-320-2530
NSN 5915-01-099-3676
NSN 5905-01-082-6141