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 6110-01-122-5928
NSN 5990-01-461-8969
NSN 6620-01-091-9697
NSN 6320-00-343-1798
NSN 6320-01-271-0247
NSN 6650-00-425-7028
NSN 5990-00-698-3963
NSN 5925-01-476-1765
NSN 5905-01-473-4939
NSN 5835-01-014-4209
NSN 5945-01-403-2800
NSN 5965-00-191-6788