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 6130-01-029-6112
NSN 6105-00-874-8998
NSN 6645-01-081-2687
NSN 6610-00-007-1527
NSN 5999-01-632-9216
NSN 5998-01-437-0454
NSN 5985-01-101-1980
NSN 6240-01-578-7023
NSN 6645-00-051-4591
NSN 6150-00-221-2593
NSN 5915-01-347-0104
NSN 5950-01-411-4827