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 5935-00-643-9995
NSN 6650-00-788-1461
NSN 5905-01-386-6488
NSN 5965-00-711-6419
NSN 5935-01-053-7659
NSN 5960-00-148-2654
NSN 5996-00-683-5176
NSN 5998-01-634-0604
NSN 6105-00-097-8131
NSN 5930-01-043-1061
NSN 6220-01-391-0499
NSN 4140-01-050-8096