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 5965-00-253-1254
NSN 5895-01-121-1967
NSN 5915-01-366-1649
NSN 6110-01-527-0210
NSN 5910-01-010-3356
NSN 5930-01-113-7551
NSN 5935-00-082-1493
NSN 2925-01-228-6554
NSN 5855-00-896-4047
NSN 6645-01-141-7016
NSN 6110-00-136-2619
NSN 6150-00-941-8618