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 5996-01-118-1079
NSN 5975-01-494-9704
NSN 6650-00-751-9958
NSN 6150-00-367-8297
NSN 5996-01-633-7979
NSN 5975-00-961-8910
NSN 5915-01-509-3592
NSN 6145-01-343-4971
NSN 6610-01-531-6980
NSN 5950-00-278-1201
NSN 5935-00-787-0402
NSN 5950-01-387-5906