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 5975-01-381-5747
NSN 5960-01-290-6919
NSN 5985-00-170-1870
NSN 5930-01-576-9993
NSN 5975-01-326-9036
NSN 5920-01-246-2967
NSN 5910-01-481-3658
NSN 5965-01-237-3342
NSN 2925-00-090-5018
NSN 5920-01-532-6477
NSN 5960-01-218-2858
NSN 6220-00-557-0024