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 5950-01-180-5264
NSN 6620-01-284-6526
NSN 7035-00-834-2090
NSN 5996-01-593-3026
NSN 5965-00-007-7863
NSN 5990-01-588-3999
NSN 5985-01-585-9981
NSN 6105-01-261-6026
NSN 6645-00-695-2343
NSN 6240-01-419-5923
NSN 6320-01-166-3602
NSN 5945-00-897-9930