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 5990-01-583-2870
NSN 6645-01-174-8116
NSN 6685-01-408-5086
NSN 5920-00-674-5882
NSN 7035-01-094-2365
NSN 6320-00-646-3311
NSN 5960-01-649-1341
NSN 6130-00-284-1629
NSN 5998-01-483-3585
NSN 6240-00-135-7071
NSN 5998-00-633-5169
NSN 5960-01-388-1988