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 6620-01-322-0018
NSN 6610-01-020-3764
NSN 6220-01-316-4846
NSN 5945-00-905-6692
NSN 6135-01-485-3082
NSN 6650-01-207-0829
NSN 7035-00-902-8995
NSN 6150-01-398-0223
NSN 6150-01-475-8481
NSN 6105-01-426-2772
NSN 7035-00-337-8745
NSN 5945-01-563-0784