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 5996-01-159-9089
NSN 5950-01-062-0877
NSN 6645-01-514-7901
NSN 6620-01-232-8550
NSN 5990-01-373-3104
NSN 5985-01-143-3484
NSN 6150-00-930-5662
NSN 6105-00-722-1178
NSN 5855-00-832-9341
NSN 6130-01-426-8841
NSN 6685-01-047-3920
NSN 5990-01-116-2181