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 6145-01-619-2243
NSN 5975-00-149-0758
NSN 6645-01-633-1852
NSN 6135-01-265-1384
NSN 5855-01-528-2744
NSN 6610-00-102-5410
NSN 5935-00-125-7022
NSN 6240-00-287-1988
NSN 5935-01-144-5634
NSN 5930-01-545-8854
NSN 5990-01-104-0469
NSN 5945-01-558-4003