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 5996-01-607-7035
NSN 5895-00-988-4416
NSN 6645-00-784-4256
NSN 5945-00-924-8108
NSN 5935-01-527-0711
NSN 6220-01-477-5001
NSN 7035-00-631-3782
NSN 5998-00-205-6704
NSN 6620-01-546-3337
NSN 6610-01-113-2726
NSN 5950-01-601-9710
NSN 5950-01-463-0888