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 5975-01-237-5769
NSN 6610-00-821-2635
NSN 5915-01-227-4109
NSN 5895-01-137-6658
NSN 5996-01-287-8311
NSN 5930-01-085-9455
NSN 6130-00-914-8831
NSN 6150-01-013-0998
NSN 4140-01-570-9765
NSN 5910-01-577-6104
NSN 2925-01-273-4898
NSN 5910-00-927-2970