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 6110-01-437-8559
NSN 5999-01-181-6402
NSN 5935-01-549-0606
NSN 5999-00-079-0368
NSN 6130-01-373-5892
NSN 5835-00-155-1379
NSN 2925-01-309-5007
NSN 2925-01-251-9529
NSN 5855-01-406-7237
NSN 5895-01-609-8688
NSN 6110-00-955-0900
NSN 5998-00-563-5295