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 6135-01-210-8715
NSN 2925-01-043-9786
NSN 6130-00-583-9925
NSN 6685-01-492-5831
NSN 5999-00-629-5316
NSN 5915-00-450-9703
NSN 5920-00-438-4973
NSN 6610-00-929-8968
NSN 6220-01-442-3662
NSN 5950-00-286-3301
NSN 5960-01-318-6557
NSN 6650-01-099-6271