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 5895-00-587-5027
NSN 6135-01-202-8113
NSN 6130-00-942-1359
NSN 6150-00-406-2761
NSN 6240-00-456-2578
NSN 7035-01-469-5854
NSN 6645-01-442-6476
NSN 6240-00-901-8612
NSN 5996-01-264-8374
NSN 6105-01-045-1856
NSN 5999-00-557-2262
NSN 5998-01-623-5061