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 5950-01-221-8176
NSN 5920-00-906-2500
NSN 6650-00-007-4372
NSN 5935-00-527-1175
NSN 5990-00-824-0236
NSN 5930-01-448-9315
NSN 2925-01-434-6945
NSN 7035-01-392-9838
NSN 5920-00-245-6434
NSN 5930-01-459-9339
NSN 5915-01-431-9235
NSN 5835-00-034-4976