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 5998-01-427-8462
NSN 6620-00-257-2783
NSN 5990-01-381-9526
NSN 5935-01-469-0059
NSN 6650-01-314-2940
NSN 5920-01-507-7159
NSN 5975-01-436-5161
NSN 6685-00-531-5020
NSN 5910-01-055-0880
NSN 5985-00-558-0662
NSN 5945-01-417-3059
NSN 5965-01-653-0376