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 5905-00-052-0135
NSN 2925-00-660-8131
NSN 6620-00-079-4615
NSN 6620-01-242-4962
NSN 6110-01-030-1050
NSN 5895-00-603-9840
NSN 5945-00-034-5810
NSN 5945-01-210-2701
NSN 5920-00-813-6015
NSN 5985-01-023-7701
NSN 6685-01-460-0586
NSN 7035-01-419-4317