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 5960-01-553-4557
NSN 6320-01-441-2438
NSN 5930-01-444-1743
NSN 6150-01-641-3519
NSN 6110-01-038-2028
NSN 6620-01-462-1625
NSN 6240-00-876-2525
NSN 7035-01-555-8793
NSN 6320-00-360-1744
NSN 5960-00-874-4857
NSN 6650-01-555-8349
NSN 5965-00-102-8521