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 5999-01-482-0765
NSN 2925-01-320-6512
NSN 6610-01-501-0129
NSN 2925-01-099-7075
NSN 6145-01-003-8665
NSN 4140-01-203-2380
NSN 5895-01-042-5978
NSN 5960-01-025-9388
NSN 6320-01-422-1212
NSN 6645-00-353-6659
NSN 5950-01-593-7117
NSN 5925-01-147-8848