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 6130-00-756-6251
NSN 6110-01-564-8040
NSN 5950-00-738-7287
NSN 4140-01-469-2266
NSN 6150-01-104-3772
NSN 5950-01-508-4244
NSN 5915-01-172-4298
NSN 5965-01-134-8078
NSN 6135-01-543-2879
NSN 5985-01-121-2304
NSN 6105-00-516-0474
NSN 6130-01-004-0723