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 5910-01-059-2909
NSN 6110-00-853-3103
NSN 6685-00-880-4912
NSN 5990-01-354-6255
NSN 5998-00-054-4868
NSN 5925-01-107-6624
NSN 5985-01-469-7399
NSN 5985-00-397-7296
NSN 5905-00-308-4103
NSN 5998-00-444-0074
NSN 5999-01-159-5831
NSN 5998-01-443-9279