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 6320-01-255-2096
NSN 5950-01-472-2467
NSN 6320-00-216-8779
NSN 6105-01-456-4488
NSN 6110-00-056-5378
NSN 6320-00-394-8458
NSN 5910-01-431-0950
NSN 6150-01-557-4772
NSN 5935-01-606-6158
NSN 5935-01-442-5475
NSN 7035-01-204-9851
NSN 5975-01-315-6378