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 5935-00-499-7360
NSN 2925-00-767-4245
NSN 2925-01-494-8360
NSN 5998-01-498-5296
NSN 5965-01-098-7028
NSN 6620-01-063-6289
NSN 5930-01-435-4303
NSN 2925-01-265-2853
NSN 6220-01-280-3983
NSN 6320-00-139-1090
NSN 5950-01-547-2448
NSN 5999-01-211-6671