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 5975-01-231-9669
NSN 6150-01-187-3696
NSN 5950-00-976-4845
NSN 6650-00-624-3686
NSN 6110-00-295-0508
NSN 5985-01-631-4274
NSN 5905-00-998-2943
NSN 5945-01-620-1288
NSN 5835-01-641-0073
NSN 6645-01-086-7668
NSN 5905-00-054-7743
NSN 5996-01-492-6330