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 5910-01-449-4942
NSN 5945-00-350-8501
NSN 6240-01-498-8507
NSN 7035-00-140-3070
NSN 5950-00-553-0606
NSN 6130-01-446-6252
NSN 5905-01-087-6105
NSN 6320-01-239-7647
NSN 6685-00-944-8920
NSN 6320-00-110-8005
NSN 7035-00-945-3166
NSN 5905-01-086-7658