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 5935-01-517-1948
NSN 5998-01-593-8970
NSN 5905-01-506-3115
NSN 6645-00-521-0353
NSN 5905-00-221-5860
NSN 5930-01-316-6314
NSN 5925-00-770-4068
NSN 6145-01-379-0013
NSN 5920-00-647-3467
NSN 5999-00-939-9342
NSN 5835-01-259-0815
NSN 5975-00-946-7940