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 6320-01-519-8767
NSN 5910-01-065-0977
NSN 5975-00-058-2229
NSN 5985-01-417-0121
NSN 5965-00-072-9942
NSN 5855-00-862-3345
NSN 5935-00-865-4174
NSN 6220-01-311-2531
NSN 5999-01-483-2040
NSN 6145-01-507-6561
NSN 5905-01-013-8467
NSN 5960-01-030-2792