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 6105-01-065-6660
NSN 5999-01-525-7505
NSN 5999-00-813-7165
NSN 6320-01-476-7702
NSN 5895-01-376-2277
NSN 5905-01-532-4671
NSN 6650-01-063-7714
NSN 5945-01-097-4760
NSN 5925-01-128-6694
NSN 6145-01-492-5642
NSN 5905-00-280-7771
NSN 5960-01-632-6576