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 6150-01-555-7481
NSN 6685-01-151-3991
NSN 5915-01-007-8841
NSN 6240-01-040-8897
NSN 5920-01-561-2075
NSN 5999-01-463-8277
NSN 6145-00-222-1356
NSN 5835-01-163-4215
NSN 4140-01-054-3553
NSN 6610-00-410-8968
NSN 6240-00-170-5302
NSN 6240-00-170-5302