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 5895-01-143-0398
NSN 6135-01-429-9029
NSN 5925-01-528-6559
NSN 5910-01-508-7868
NSN 7035-01-536-7129
NSN 6110-01-255-8635
NSN 6610-00-998-1355
NSN 5965-00-240-3819
NSN 5920-01-262-0361
NSN 6135-00-681-2702
NSN 5999-01-397-2051
NSN 6645-01-056-3417