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 5915-01-411-6202
NSN 5915-01-408-4655
NSN 5905-01-355-5681
NSN 5998-00-375-4259
NSN 6610-01-656-0041
NSN 5990-01-073-4782
NSN 5835-01-632-6627
NSN 6685-01-414-8811
NSN 5950-00-819-4956
NSN 4140-01-164-4935
NSN 6650-01-065-8531
NSN 5935-01-262-1100