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 6320-00-450-7014
NSN 5965-01-003-2641
NSN 5895-00-270-6595
NSN 5990-01-336-3976
NSN 5999-01-219-3123
NSN 5905-01-472-1692
NSN 6150-01-607-0663
NSN 5895-01-406-7377
NSN 5950-00-891-2645
NSN 4140-01-338-9080
NSN 5950-01-648-0061
NSN 5960-00-156-4954