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 5930-00-193-7349
NSN 5965-01-578-5626
NSN 5915-01-298-4075
NSN 5985-01-097-7337
NSN 5835-00-958-6231
NSN 5950-01-112-0746
NSN 6650-00-052-3202
NSN 5998-01-627-8297
NSN 5925-01-368-3723
NSN 5910-00-301-1227
NSN 6150-01-013-9492
NSN 5999-01-616-0763