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 4140-01-123-9149
NSN 6320-01-539-0994
NSN 6150-01-456-6518
NSN 5905-00-276-8597
NSN 5965-01-335-6630
NSN 5920-01-204-6419
NSN 5935-01-414-0460
NSN 5905-01-520-4671
NSN 7035-01-475-5116
NSN 5910-00-705-9414
NSN 6685-00-334-0621
NSN 5920-01-623-1086