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 6145-01-567-0005
NSN 4140-00-800-0317
NSN 5996-00-062-8338
NSN 6110-01-072-7883
NSN 5960-01-552-0862
NSN 6105-01-348-0120
NSN 5855-01-425-6340
NSN 5925-01-178-5210
NSN 5915-00-941-3958
NSN 5985-00-496-3822
NSN 5835-01-090-0784
NSN 5895-00-993-6436