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 5945-01-188-6871
NSN 6620-01-330-3917
NSN 5996-00-187-1424
NSN 5950-01-507-5848
NSN 6150-00-822-4396
NSN 5960-00-581-9719
NSN 4140-00-648-3303
NSN 6130-01-226-0343
NSN 5905-01-533-0401
NSN 5910-00-422-5333
NSN 5945-01-391-6083
NSN 5975-01-321-7175