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 6105-01-007-6115
NSN 5925-00-272-8959
NSN 5905-01-329-8984
NSN 6240-01-179-4547
NSN 5835-01-307-8954
NSN 5945-01-060-9058
NSN 2925-00-453-4100
NSN 6150-01-552-9674
NSN 5990-00-488-1091
NSN 6105-01-459-4831
NSN 6150-01-597-8438
NSN 5990-01-364-0813