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 6320-01-215-1133
NSN 5905-00-039-8965
NSN 5999-00-498-7574
NSN 5998-00-081-8208
NSN 6220-01-327-4999
NSN 6110-00-924-1145
NSN 6130-00-960-9158
NSN 6145-00-407-5676
NSN 6240-00-958-9831
NSN 5935-00-221-8122
NSN 6685-01-253-8036
NSN 5855-00-631-4565