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 5985-01-066-9012
NSN 5998-01-506-5559
NSN 6685-01-433-2050
NSN 5990-00-969-5719
NSN 5996-01-250-2814
NSN 6110-01-483-2166
NSN 5935-01-473-4165
NSN 6150-01-372-8647
NSN 5965-01-514-7231
NSN 6105-01-139-4778
NSN 5965-01-122-7477
NSN 6240-01-237-5430