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 6610-01-503-0153
NSN 6685-00-408-6886
NSN 5960-01-448-2282
NSN 6145-00-239-1304
NSN 6220-00-084-4240
NSN 5920-01-596-6418
NSN 6135-01-535-2307
NSN 6135-00-919-1117
NSN 5945-00-933-0513
NSN 6650-01-390-3205
NSN 5925-00-275-7599
NSN 6150-01-536-8079