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 6105-00-161-1834
NSN 6685-01-324-2503
NSN 7035-01-320-7453
NSN 5998-00-195-7657
NSN 6240-01-555-1262
NSN 7035-01-179-5667
NSN 5895-01-548-5740
NSN 4140-01-413-7065
NSN 5905-00-296-8763
NSN 5996-01-533-7803
NSN 5925-00-724-4388
NSN 6650-01-658-7194