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 5950-00-420-7320
NSN 5999-01-451-4104
NSN 5960-01-215-0992
NSN 5975-01-399-4129
NSN 6220-01-281-8848
NSN 6240-01-578-5177
NSN 6620-00-596-1951
NSN 6645-01-588-8437
NSN 6130-00-499-1439
NSN 6220-01-384-9131
NSN 6110-01-186-7282
NSN 6620-01-167-0881