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 5925-01-430-2318
NSN 5975-01-062-0960
NSN 6145-00-110-4088
NSN 5910-00-359-6258
NSN 5930-01-295-6882
NSN 5975-00-719-9586
NSN 6240-01-351-6729
NSN 5960-00-418-3588
NSN 5950-00-080-6811
NSN 5855-01-513-1859
NSN 2925-01-129-1261
NSN 6620-01-367-0844