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 5996-01-399-6677
NSN 6240-00-109-5914
NSN 6320-01-090-8296
NSN 5960-01-567-1096
NSN 5950-01-388-3753
NSN 6645-01-572-7175
NSN 5945-01-633-3355
NSN 5915-01-162-9199
NSN 5915-01-008-9922
NSN 6645-01-007-5295
NSN 5930-01-430-7186
NSN 6105-00-570-8376