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 6645-00-363-9775
NSN 5835-00-415-6421
NSN 6685-01-042-6590
NSN 5920-00-815-5599
NSN 6220-00-801-3872
NSN 5960-01-239-9651
NSN 5945-01-462-9205
NSN 6130-01-265-1021
NSN 6220-00-643-4045
NSN 5965-01-323-0501
NSN 6105-00-215-0630
NSN 5996-01-591-6955