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 6620-01-308-2520
NSN 5935-01-358-2793
NSN 6620-00-829-7056
NSN 5999-01-361-2729
NSN 5920-00-246-2187
NSN 5945-01-554-9763
NSN 6610-01-097-5073
NSN 5965-01-499-7318
NSN 5975-00-950-3415
NSN 5960-01-177-7406
NSN 5935-00-883-2762
NSN 5905-00-176-2695