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 6645-01-439-4240
NSN 5996-01-082-8987
NSN 5985-01-508-5059
NSN 6130-01-232-9115
NSN 5975-01-431-7714
NSN 6220-01-543-5073
NSN 5855-01-530-4147
NSN 5905-01-112-8460
NSN 6620-00-816-9755
NSN 6645-01-227-2036
NSN 5996-01-612-1371
NSN 6320-01-056-1164