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 5985-00-007-5477
NSN 5990-01-146-1779
NSN 5950-00-113-2496
NSN 6685-01-020-7235
NSN 5965-01-458-5299
NSN 6135-01-131-7064
NSN 5895-00-115-9236
NSN 6110-01-394-5302
NSN 5935-01-433-2509
NSN 4140-00-878-6606
NSN 5985-01-052-0785
NSN 5985-00-615-9766