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 5895-00-890-7023
NSN 5990-01-250-4198
NSN 5965-01-408-9551
NSN 5945-01-377-5804
NSN 5905-00-262-6227
NSN 5945-01-544-3521
NSN 5895-00-998-8855
NSN 5950-01-134-8492
NSN 6220-00-188-7525
NSN 6110-00-378-8458
NSN 6150-01-206-9661
NSN 6240-00-925-0841