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 5920-01-278-0600
NSN 6150-00-087-2429
NSN 7035-01-413-3975
NSN 6650-01-090-0719
NSN 6150-00-125-0453
NSN 6320-00-894-1644
NSN 6650-00-839-2527
NSN 5996-01-223-4665
NSN 5996-01-339-7055
NSN 5975-01-093-1281
NSN 6105-00-567-8705
NSN 5930-01-327-4384