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 5905-01-112-7850
NSN 5910-01-354-5151
NSN 5950-01-489-7054
NSN 5855-01-496-8562
NSN 5960-01-102-5936
NSN 5990-01-392-5682
NSN 6320-00-242-3300
NSN 5895-01-415-3732
NSN 6105-00-806-2695
NSN 5998-01-314-5147
NSN 5998-01-628-5706
NSN 6105-00-077-1166