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 5915-01-372-8918
NSN 5905-01-497-6255
NSN 5975-01-477-8787
NSN 6610-00-924-8814
NSN 5975-01-179-4950
NSN 6110-00-980-9292
NSN 5945-00-728-6846
NSN 6610-00-705-9502
NSN 6130-01-173-0646
NSN 6610-01-232-4802
NSN 6145-00-229-1383
NSN 5855-00-149-0766