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 5998-00-542-7090
NSN 5965-01-550-5587
NSN 5998-01-616-5809
NSN 6220-00-869-9277
NSN 6105-00-075-9786
NSN 6620-01-004-7072
NSN 5935-01-260-9401
NSN 5855-01-308-0955
NSN 5935-00-499-9070
NSN 6110-00-839-1606
NSN 5965-01-378-7096
NSN 6135-00-377-9165