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 5920-01-250-3473
NSN 6135-00-519-1325
NSN 6220-01-181-7117
NSN 6220-01-442-7282
NSN 6105-01-029-1925
NSN 5930-01-262-2357
NSN 5920-01-212-9908
NSN 5999-01-481-0846
NSN 5835-01-435-4139
NSN 6130-00-816-7981
NSN 6135-01-521-7693
NSN 5905-01-588-2257