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 6135-01-357-0621
NSN 5999-00-819-4598
NSN 6620-01-341-5164
NSN 5935-00-070-4327
NSN 5920-01-188-6458
NSN 6685-00-399-3250
NSN 5985-01-077-8393
NSN 6620-01-122-8886
NSN 6240-00-518-3541
NSN 6150-00-621-2570
NSN 6135-01-121-3225
NSN 6145-01-049-2360