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 5985-01-548-5415
NSN 6685-00-371-2163
NSN 5998-01-234-4329
NSN 5999-00-932-2509
NSN 5999-01-276-8970
NSN 7035-01-364-0286
NSN 5905-01-061-0186
NSN 4140-00-075-2000
NSN 6620-00-193-9503
NSN 6150-00-890-3047
NSN 5950-00-479-6715
NSN 5915-01-398-0633