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 5996-01-599-9867
NSN 5999-01-463-9039
NSN 6220-01-446-6430
NSN 5895-01-234-7164
NSN 6145-01-201-9544
NSN 7035-01-158-7673
NSN 5920-00-269-6178
NSN 6110-01-229-7627
NSN 6150-01-428-9969
NSN 5965-01-248-7231
NSN 4140-01-250-0204
NSN 5835-00-466-8544