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 5998-01-302-6772
NSN 6105-01-269-1988
NSN 6110-01-632-1792
NSN 7035-00-392-5417
NSN 6240-01-391-6027
NSN 5975-00-246-7393
NSN 5975-01-574-9082
NSN 6145-01-197-9233
NSN 5990-00-021-6919
NSN 6240-01-518-6843
NSN 5910-01-227-4024
NSN 7035-00-803-3056