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 6240-01-552-0015
NSN 6240-01-155-2959
NSN 2925-01-386-7392
NSN 5895-00-821-9067
NSN 5950-01-352-0960
NSN 5905-00-172-9314
NSN 5910-01-410-8658
NSN 6620-01-550-2805
NSN 7035-01-256-9598
NSN 5996-01-578-8491
NSN 6220-01-472-3785
NSN 5945-01-496-9659