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 5996-00-717-3218
NSN 5930-01-579-0743
NSN 5960-00-160-2183
NSN 6220-00-123-8919
NSN 5920-00-103-7642
NSN 6620-00-132-1151
NSN 6150-00-318-8209
NSN 5855-01-191-3404
NSN 6650-01-003-9355
NSN 5930-00-179-7700
NSN 5950-01-488-1275
NSN 5998-00-553-5025