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 5855-00-004-0904
NSN 6130-01-116-3402
NSN 5965-01-629-4663
NSN 6135-01-226-4071
NSN 5960-01-356-4429
NSN 6620-01-177-5567
NSN 5975-01-208-0851
NSN 5996-01-421-2416
NSN 6320-01-309-9595
NSN 4140-01-541-1633
NSN 6150-01-211-6659
NSN 6240-00-591-6836