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 6110-01-575-8243
NSN 6620-01-440-9810
NSN 6610-01-482-6266
NSN 6220-01-148-2735
NSN 5945-00-126-7162
NSN 6320-00-456-0836
NSN 5945-01-573-9420
NSN 6240-00-204-0459
NSN 6240-01-552-3956
NSN 5910-00-837-5677
NSN 5915-00-308-5404
NSN 6220-01-461-2910