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 5905-01-228-9822
NSN 4140-01-159-6253
NSN 5965-01-495-1170
NSN 5935-00-416-4747
NSN 6150-01-487-2395
NSN 6650-01-646-6909
NSN 5910-01-503-8366
NSN 5895-01-411-5138
NSN 6610-00-597-5671
NSN 5855-00-256-5562
NSN 6620-01-310-6653
NSN 5999-01-081-0984