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 6320-00-036-3688
NSN 6220-00-847-1520
NSN 5915-00-862-8226
NSN 2925-01-328-4394
NSN 6220-01-628-8552
NSN 6150-01-411-6299
NSN 5998-00-555-9028
NSN 5950-01-394-5352
NSN 6130-00-681-1496
NSN 5905-00-678-7962
NSN 5915-01-174-1164
NSN 5965-01-265-2980