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 5998-00-197-3081
NSN 6650-01-211-5628
NSN 5910-00-774-4143
NSN 6650-01-305-8079
NSN 2925-01-607-7754
NSN 5965-00-028-9646
NSN 6110-00-948-3204
NSN 6105-01-199-4265
NSN 5895-01-068-5595
NSN 6110-01-167-3848
NSN 6645-00-163-9580
NSN 5975-00-041-1426