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 6145-01-156-3845
NSN 6685-01-176-6869
NSN 6220-01-445-6575
NSN 5950-00-785-9634
NSN 6320-01-255-2096
NSN 5975-01-552-4559
NSN 5998-00-458-9128
NSN 5996-01-399-6677
NSN 6240-01-323-1228
NSN 5950-01-378-6705
NSN 6240-01-574-0261
NSN 6685-01-441-6528