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 4140-01-577-8007
NSN 6130-01-577-3912
NSN 5930-01-252-7941
NSN 5945-00-627-3699
NSN 5945-01-348-2882
NSN 6135-00-557-8874
NSN 6685-00-834-9187
NSN 5999-01-548-0251
NSN 6650-01-350-2515
NSN 5905-00-082-1026
NSN 6220-01-413-4164
NSN 5950-01-420-6385