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 7035-01-413-6697
NSN 5975-00-752-7644
NSN 6650-01-020-6148
NSN 6220-01-512-0144
NSN 5855-01-395-7429
NSN 6110-00-819-5768
NSN 6240-01-221-1378
NSN 5998-01-358-0277
NSN 6610-01-196-9861
NSN 5945-01-306-0300
NSN 6240-00-952-4501
NSN 6650-01-431-6796