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 6645-01-317-1308
NSN 5910-01-379-0828
NSN 6130-01-011-8173
NSN 5990-01-188-7309
NSN 5905-00-581-7296
NSN 6150-01-241-3725
NSN 6150-00-707-8804
NSN 5910-01-453-7760
NSN 6240-01-157-9128
NSN 6620-01-512-2016
NSN 6610-01-259-5296
NSN 6130-01-350-3585