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 5990-01-068-1651
NSN 6685-01-457-9777
NSN 6145-00-557-0339
NSN 5965-00-246-5612
NSN 5910-01-083-6996
NSN 5950-01-541-6216
NSN 6145-00-715-1186
NSN 6135-01-308-5688
NSN 6150-01-268-3144
NSN 5920-00-945-1632
NSN 5950-01-326-0807
NSN 5965-01-168-8180