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 6110-01-651-6342
NSN 5905-01-422-5509
NSN 5855-00-832-9341
NSN 5998-01-189-0677
NSN 7035-01-164-2136
NSN 6685-00-068-3446
NSN 5930-01-480-8184
NSN 5998-01-605-2944
NSN 2925-01-446-6976
NSN 5895-01-387-6520
NSN 5950-00-753-7577
NSN 5945-01-120-6729