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 4140-00-360-2457
NSN 6650-01-358-2827
NSN 6220-01-225-2972
NSN 7035-01-435-4009
NSN 6650-01-588-6020
NSN 6110-01-605-4165
NSN 6220-00-240-3300
NSN 6240-01-029-3701
NSN 5915-01-462-2124
NSN 6150-01-055-6670
NSN 5990-01-203-6089
NSN 6320-01-435-5991