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 5915-01-292-3367
NSN 5855-01-397-2487
NSN 5990-01-193-0487
NSN 6145-01-167-4381
NSN 5925-01-486-1918
NSN 6150-01-463-2709
NSN 5950-01-555-8152
NSN 5930-01-418-9569
NSN 5930-01-039-8833
NSN 6685-01-025-1085
NSN 5950-00-285-6419
NSN 6650-00-158-3683