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 6650-01-398-7323
NSN 6320-01-305-5881
NSN 5920-01-307-9254
NSN 5965-01-394-1542
NSN 5920-01-239-2038
NSN 5998-01-395-7943
NSN 6645-01-342-9415
NSN 6110-01-090-0804
NSN 6610-00-872-2597
NSN 6620-01-105-5770
NSN 4140-00-252-0879
NSN 5930-01-006-0141