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 5965-01-137-3769
NSN 6685-01-492-5340
NSN 5905-00-533-1112
NSN 5895-01-566-0956
NSN 6150-01-472-2573
NSN 5975-01-033-4892
NSN 5835-00-949-3018
NSN 6145-01-258-1840
NSN 6650-01-358-0948
NSN 4140-01-088-0401
NSN 6110-00-371-2458
NSN 5835-01-323-2581