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 6145-01-647-4096
NSN 5996-01-593-5926
NSN 5998-01-188-7217
NSN 5990-01-264-6512
NSN 6220-01-429-4626
NSN 5985-01-443-4576
NSN 6620-00-995-1811
NSN 5935-01-444-6030
NSN 6685-00-849-2256
NSN 6685-01-124-2268
NSN 5895-00-518-4954
NSN 6685-01-520-4684