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 5915-01-437-8858
NSN 6645-00-994-6664
NSN 6105-00-004-1276
NSN 5855-00-198-3197
NSN 5960-01-093-9491
NSN 5999-01-434-5670
NSN 5910-00-114-5290
NSN 6650-00-941-2585
NSN 6145-01-070-7176
NSN 5835-01-359-2575
NSN 5855-01-158-2709
NSN 6650-01-130-6799