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 6220-01-242-9901
NSN 6685-01-592-3432
NSN 6135-01-495-0933
NSN 5835-01-132-5894
NSN 6135-00-983-9187
NSN 6320-00-295-2854
NSN 6240-01-422-7575
NSN 5996-01-275-0706
NSN 7035-00-055-9778
NSN 5935-01-598-1685
NSN 6105-01-576-2242
NSN 6105-01-188-7292