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 6240-01-150-2009
NSN 6145-01-442-8143
NSN 6220-01-460-3033
NSN 5925-01-631-2226
NSN 6240-01-494-0514
NSN 5975-01-414-8873
NSN 5915-00-083-3013
NSN 6130-00-935-8791
NSN 5895-01-103-6260
NSN 5925-00-053-3536
NSN 5895-01-648-6584
NSN 5920-01-483-3875