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 6110-00-417-9593
NSN 6220-01-184-0228
NSN 6135-01-589-0333
NSN 5965-01-208-5820
NSN 5855-00-058-1293
NSN 6240-01-546-2860
NSN 5895-01-337-3583
NSN 6645-01-391-9820
NSN 6645-01-018-7664
NSN 6645-00-960-6594
NSN 4140-00-394-3538
NSN 5935-00-665-6815