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 5855-01-458-9550
NSN 5855-00-610-4052
NSN 6685-00-150-7080
NSN 5935-01-459-4072
NSN 5965-00-284-7806
NSN 5905-01-351-0685
NSN 2925-01-271-8727
NSN 6320-01-116-3980
NSN 5855-01-426-5589
NSN 5990-01-449-7090
NSN 6620-01-048-4145
NSN 5990-01-619-6446