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 6610-00-864-9966
NSN 6145-01-499-9745
NSN 5960-01-421-0887
NSN 5935-00-139-1829
NSN 5985-01-089-5320
NSN 5855-01-523-8363
NSN 6135-01-142-6456
NSN 5895-01-644-5115
NSN 5945-01-228-1762
NSN 5910-01-308-3978
NSN 5990-00-763-1931
NSN 6110-01-389-3841