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 6110-00-689-6313
NSN 5935-00-251-8779
NSN 5925-00-466-7308
NSN 5990-01-514-8708
NSN 5895-00-284-4835
NSN 5975-01-169-9405
NSN 5935-00-900-5405
NSN 5990-00-226-1152
NSN 6130-01-419-7091
NSN 2925-01-448-2880
NSN 5998-01-075-3197
NSN 5935-01-568-3900