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 4140-01-158-6976
NSN 5915-00-467-6796
NSN 5950-01-319-7369
NSN 5935-00-670-7895
NSN 5925-01-210-9765
NSN 6105-01-449-2375
NSN 2925-01-381-5307
NSN 5920-00-911-1662
NSN 5910-01-014-0159
NSN 5855-01-341-7320
NSN 6645-00-406-2564
NSN 5985-00-094-6835