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 5965-00-255-3889
NSN 5925-01-532-1173
NSN 6620-00-873-9825
NSN 6220-00-682-8292
NSN 5999-00-912-0540
NSN 5998-01-590-5251
NSN 5996-01-627-0603
NSN 4140-01-074-0931
NSN 6240-00-054-5149
NSN 2925-00-010-9609
NSN 5930-01-616-1416
NSN 5935-01-364-1648