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 6320-00-149-7570
NSN 6645-01-485-3517
NSN 4140-00-640-6811
NSN 5935-00-071-3634
NSN 5895-01-249-0785
NSN 6320-01-072-2073
NSN 6105-01-049-6799
NSN 6620-01-431-9176
NSN 5945-00-327-2011
NSN 5960-01-514-5433
NSN 5950-00-378-9959
NSN 6220-01-355-6316