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 5925-01-391-8077
NSN 5945-00-887-2609
NSN 5930-01-371-2084
NSN 5945-00-217-0983
NSN 5985-01-449-5407
NSN 5999-00-977-7380
NSN 4140-00-003-8311
NSN 6610-00-144-7036
NSN 6135-00-756-6149
NSN 5925-00-111-5063
NSN 5905-01-226-8298
NSN 5996-00-765-1401