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 5905-01-323-7065
NSN 5985-01-406-6262
NSN 6620-01-142-7996
NSN 5920-00-658-7219
NSN 6150-01-370-4863
NSN 6220-01-357-7675
NSN 6320-01-006-6138
NSN 5905-01-146-5511
NSN 5855-01-236-9645
NSN 5998-01-554-3785
NSN 5935-00-619-8941
NSN 5950-01-251-2820