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 5996-01-412-5007
NSN 4140-01-501-9775
NSN 2925-01-391-9247
NSN 5999-01-623-0959
NSN 5855-00-149-0766
NSN 6645-01-025-1002
NSN 2925-00-513-6644
NSN 6240-01-252-9374
NSN 6145-01-644-4779
NSN 4140-00-069-5154
NSN 6110-00-929-3469
NSN 5965-01-101-9094