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 5925-00-052-7771
NSN 5985-01-327-2161
NSN 5990-01-170-0077
NSN 5910-01-196-4749
NSN 5950-01-090-0277
NSN 6110-01-166-7220
NSN 5910-00-840-9742
NSN 5998-00-082-0368
NSN 5960-01-059-6300
NSN 6130-01-478-6762
NSN 5999-00-929-7549
NSN 5925-01-190-9102