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 6110-01-063-3441
NSN 6320-00-575-6072
NSN 6650-01-463-2274
NSN 5998-01-629-9701
NSN 5990-00-324-4454
NSN 5945-01-485-2402
NSN 7035-00-048-3723
NSN 6105-00-153-7967
NSN 5925-00-708-1605
NSN 6220-01-242-9901
NSN 6610-00-278-7647
NSN 5895-01-447-8993