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 6150-01-514-1840
NSN 5930-01-634-0659
NSN 6220-01-380-6204
NSN 5915-00-368-4564
NSN 6130-01-020-9004
NSN 5910-00-060-8671
NSN 5985-01-200-1020
NSN 6610-00-570-9849
NSN 6220-01-401-5337
NSN 6645-01-197-9090
NSN 5960-01-170-0234
NSN 5915-00-135-4307