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 6220-01-020-8703
NSN 6620-01-483-1138
NSN 6320-01-652-3806
NSN 6145-01-572-7587
NSN 2925-01-446-6976
NSN 5999-00-123-7027
NSN 6320-01-445-8192
NSN 4140-00-232-9859
NSN 5945-01-260-9321
NSN 5935-00-691-6106
NSN 6610-01-418-5787
NSN 5996-01-164-6758