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 5920-00-862-5820
NSN 5905-01-538-5069
NSN 5996-01-415-3291
NSN 6610-01-625-2926
NSN 5935-01-618-9170
NSN 6145-00-275-4046
NSN 6320-00-519-0770
NSN 6105-01-372-7808
NSN 6145-01-099-0448
NSN 5895-00-379-4699
NSN 5915-01-310-4221
NSN 6130-00-844-0147