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 5999-01-213-5340
NSN 6135-00-299-6918
NSN 5910-01-517-5094
NSN 5925-00-134-3887
NSN 4140-00-351-7085
NSN 6610-01-247-6374
NSN 6610-00-150-7002
NSN 6610-01-033-2402
NSN 6105-01-535-0999
NSN 6685-01-415-5603
NSN 6110-01-623-5215
NSN 6110-01-406-3623