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 5999-00-934-9876
NSN 6130-01-075-6724
NSN 6610-01-622-4326
NSN 5905-01-304-1528
NSN 5925-01-607-1548
NSN 5855-01-607-6521
NSN 5930-00-709-3069
NSN 5895-00-518-1593
NSN 4140-01-149-9936
NSN 5996-01-411-1865
NSN 5895-00-079-1314
NSN 6220-00-712-1779