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 5965-00-249-6980
NSN 6610-00-684-1666
NSN 6130-00-834-0142
NSN 5920-01-185-2222
NSN 7035-01-563-6712
NSN 5950-01-073-0802
NSN 5999-01-374-0131
NSN 5960-01-283-2281
NSN 5996-01-182-6000
NSN 5935-01-480-6241
NSN 6150-00-113-8619
NSN 4140-00-523-0419