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 6620-01-549-3559
NSN 6145-01-583-6094
NSN 6105-01-366-2111
NSN 6620-01-431-0706
NSN 6135-01-151-2705
NSN 5835-00-532-5910
NSN 5990-01-471-0494
NSN 6135-01-606-0596
NSN 6645-01-383-1083
NSN 5935-01-550-9733
NSN 5950-00-151-9827
NSN 6620-01-281-6386