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 5999-01-066-6572
NSN 5905-01-077-2554
NSN 6145-01-571-6875
NSN 5950-01-424-7267
NSN 5915-01-167-9072
NSN 6320-01-362-9518
NSN 5925-00-606-6529
NSN 5935-00-908-4272
NSN 5950-01-029-3292
NSN 5998-00-495-2789
NSN 5985-01-182-7437
NSN 5996-01-485-4751