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 6130-01-220-4524
NSN 5996-01-064-6138
NSN 6320-01-082-2970
NSN 5905-01-605-4978
NSN 6110-01-558-7654
NSN 5910-01-075-7115
NSN 5960-01-398-9538
NSN 6145-01-634-0388
NSN 6145-01-456-5929
NSN 5990-01-229-0222
NSN 5996-00-304-8196
NSN 6220-01-335-3264