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 6110-01-341-3933
NSN 6650-00-937-5319
NSN 5960-00-419-9964
NSN 5960-00-256-3622
NSN 6685-00-226-8152
NSN 6130-00-344-4476
NSN 6110-01-085-5172
NSN 6620-01-217-3216
NSN 5855-00-631-4565
NSN 6240-01-515-5760
NSN 5855-01-147-4785
NSN 6135-00-182-7008