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 6685-00-753-7668
NSN 5920-01-269-4191
NSN 6650-01-112-0453
NSN 5925-01-305-4349
NSN 6645-00-679-8203
NSN 5990-01-270-3209
NSN 5950-01-510-3802
NSN 6150-00-226-0992
NSN 5950-01-098-3858
NSN 5960-01-265-0354
NSN 4140-01-087-3336
NSN 5999-01-046-6368