A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. It may include multiple pieces, such as a retainer ring, disk and vacuum support. It can be used independently or as a component part of a head, safety, pressure relief. For items furnished with a holder, see head and disk, safety, pressure relief. For items without a rupture pressure rating, see disk, solid, plain. Excludes diaphragm, valve, flat; diaphragm, valve, special shaped; disk, valve; and insulator, disk.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 5920-00-180-4278
NSN 6135-01-231-4809
NSN 6145-00-537-7059
NSN 5990-01-240-7288
NSN 5925-01-462-0068
NSN 5930-01-224-7392
NSN 5920-01-393-8264
NSN 5990-01-253-7647
NSN 5905-01-461-4295
NSN 5950-00-876-4581
NSN 6150-00-099-6919
NSN 5905-01-594-1754