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 6645-00-583-0066
NSN 5855-01-542-9059
NSN 6110-01-031-3988
NSN 6220-01-516-8996
NSN 7035-01-266-3490
NSN 5930-01-136-2385
NSN 4140-01-281-8832
NSN 6685-01-056-1260
NSN 5835-00-594-4921
NSN 5985-01-364-1108
NSN 5910-00-528-4311
NSN 6685-00-082-3153