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 5925-01-086-7424
NSN 5960-01-365-8752
NSN 5905-01-445-5923
NSN 6620-00-477-7808
NSN 6105-01-242-2461
NSN 5965-01-501-5638
NSN 6620-00-341-1876
NSN 5930-01-535-7121
NSN 7035-01-106-3476
NSN 5920-00-518-3871
NSN 6620-00-060-5982
NSN 5960-01-352-0451