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 5930-00-230-4980
NSN 6240-01-061-7359
NSN 7035-01-271-1643
NSN 5905-01-221-3406
NSN 5910-00-518-1477
NSN 5975-01-498-4431
NSN 5996-01-383-7018
NSN 6650-01-444-2152
NSN 6685-01-423-1064
NSN 5960-01-436-4493
NSN 5925-00-542-9637
NSN 5945-00-045-6255