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 5905-00-752-7360
NSN 6320-01-552-8236
NSN 6145-00-782-4420
NSN 6145-00-101-9857
NSN 5895-01-176-2283
NSN 6645-00-166-6959
NSN 6645-01-519-2220
NSN 6650-01-170-4397
NSN 5990-00-165-1809
NSN 5990-01-481-3080
NSN 6150-00-316-3223
NSN 5990-01-485-0260