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 5999-01-159-2686
NSN 5920-01-650-0069
NSN 5930-01-228-8533
NSN 6220-01-289-6492
NSN 6110-00-496-9887
NSN 5935-00-949-6061
NSN 6135-00-932-3136
NSN 6150-01-607-6612
NSN 5985-01-371-2943
NSN 5915-00-020-2830
NSN 6620-00-182-7638
NSN 6685-00-951-8492