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 5925-01-660-9556
NSN 6650-01-311-3514
NSN 5950-01-465-9260
NSN 6130-01-505-7785
NSN 5935-01-232-3453
NSN 5915-00-954-0559
NSN 5990-00-197-0159
NSN 6240-01-208-6229
NSN 5998-00-193-2123
NSN 5910-00-518-1477
NSN 2925-01-468-7073
NSN 5975-01-102-4829