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 6685-00-091-0281
NSN 5960-01-005-9530
NSN 5935-01-247-2143
NSN 5985-01-238-1987
NSN 5920-01-634-0250
NSN 6645-00-775-2172
NSN 5915-01-128-1121
NSN 6135-00-826-4798
NSN 5998-00-258-2081
NSN 5930-01-515-8116
NSN 6105-00-619-3377
NSN 5835-01-626-9603