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 5910-00-936-4822
NSN 6135-00-583-3966
NSN 5965-00-267-4173
NSN 5975-01-449-1798
NSN 6610-00-788-0134
NSN 5985-01-258-9200
NSN 5855-01-560-1022
NSN 5975-00-539-7300
NSN 6130-01-532-6973
NSN 4140-00-009-8803
NSN 6320-01-279-0343
NSN 6645-01-207-9273