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 5975-00-491-7668
NSN 5965-01-655-1457
NSN 5950-00-782-1783
NSN 5920-01-079-8924
NSN 5930-00-231-1514
NSN 6130-01-023-8031
NSN 6150-01-099-4054
NSN 5998-01-411-6116
NSN 5935-01-108-4522
NSN 5915-00-615-9537
NSN 6110-01-579-3764
NSN 4140-01-551-7286