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 5930-01-259-6423
NSN 6685-00-949-8962
NSN 6150-00-008-5122
NSN 4140-00-372-2947
NSN 5895-01-438-6234
NSN 6220-01-065-1387
NSN 5835-00-003-0295
NSN 5935-01-476-7205
NSN 6650-01-020-5580
NSN 6645-01-415-6093
NSN 6610-00-283-2592
NSN 5835-01-482-1591