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 5925-01-014-7183
NSN 4140-01-255-3993
NSN 6110-01-145-4458
NSN 5915-01-357-9468
NSN 6130-01-160-6610
NSN 6130-01-120-1664
NSN 6650-01-505-2517
NSN 6150-00-889-5264
NSN 6650-00-970-8110
NSN 5835-01-511-5337
NSN 6320-01-345-5818
NSN 4140-01-539-0548