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 5998-01-547-1947
NSN 5935-01-433-2821
NSN 5915-00-235-3647
NSN 6130-01-608-4821
NSN 5990-00-263-1289
NSN 5915-01-579-2093
NSN 5998-00-141-2489
NSN 5945-01-436-5112
NSN 5945-00-068-3948
NSN 5999-00-637-9685
NSN 5930-00-960-7223
NSN 5855-00-797-8217