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 5855-00-832-9341
NSN 6150-01-242-9684
NSN 5945-00-108-9647
NSN 6650-00-907-8565
NSN 6320-00-937-5625
NSN 5905-01-456-2517
NSN 5935-01-061-2930
NSN 5998-00-952-3008
NSN 5975-01-653-3465
NSN 5925-01-046-9213
NSN 5835-01-463-2334
NSN 5975-00-836-4761