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 6610-01-439-0711
NSN 4140-00-451-3017
NSN 6105-01-560-2697
NSN 5985-01-529-7280
NSN 5960-01-538-2082
NSN 5915-01-206-5056
NSN 6150-01-010-4155
NSN 6110-00-105-9850
NSN 5910-01-606-5661
NSN 5990-01-553-1094
NSN 6145-01-040-7572
NSN 5990-01-263-0362