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 6645-00-922-8312
NSN 5920-01-470-1925
NSN 5915-01-190-3472
NSN 7035-00-703-3535
NSN 5990-01-116-2181
NSN 5965-01-065-5544
NSN 6145-01-054-0919
NSN 5855-01-474-3325
NSN 5910-00-916-5831
NSN 5975-01-171-4945
NSN 6620-00-917-5259
NSN 6220-00-403-3444