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 6650-00-177-6390
NSN 5996-00-571-8934
NSN 6685-01-607-1743
NSN 6650-00-832-6970
NSN 5835-00-111-2953
NSN 5910-00-448-5650
NSN 5835-01-132-5894
NSN 5855-01-376-0363
NSN 6105-01-259-4649
NSN 6650-01-536-8146
NSN 5990-00-239-3432
NSN 6650-00-930-8825