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 5999-01-424-8401
NSN 6130-00-179-8310
NSN 5975-01-198-2612
NSN 6610-00-147-3187
NSN 6685-01-431-5785
NSN 6130-01-096-4622
NSN 6135-00-437-5182
NSN 5999-01-434-5670
NSN 5945-01-522-4593
NSN 6240-01-419-3495
NSN 6150-01-461-7984
NSN 5925-00-150-1072