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 6130-01-334-1556
NSN 5905-00-345-9761
NSN 5990-01-485-0260
NSN 6145-01-170-1441
NSN 6320-00-823-2015
NSN 5950-01-660-3276
NSN 6220-00-739-1799
NSN 6650-00-458-7586
NSN 6320-00-242-3300
NSN 5910-01-512-1978
NSN 5965-01-367-2595
NSN 5920-01-252-8596