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 5915-00-723-2476
NSN 7035-00-481-5182
NSN 6645-00-418-2133
NSN 5895-00-708-6443
NSN 5998-01-500-4842
NSN 4140-01-586-5845
NSN 5945-01-524-8662
NSN 6145-00-854-6556
NSN 2925-00-636-4026
NSN 6645-00-793-5794
NSN 5985-01-398-4487
NSN 5999-00-871-3971