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 5945-00-475-8107
NSN 5996-00-538-6069
NSN 5915-01-158-4918
NSN 5910-01-328-3800
NSN 6110-01-228-2440
NSN 6130-01-539-8112
NSN 6145-00-489-3574
NSN 5930-01-502-7156
NSN 6320-01-631-7828
NSN 5960-01-388-1988
NSN 6645-00-503-1379
NSN 6320-00-225-7013