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 5985-00-883-3308
NSN 5996-01-258-5888
NSN 5935-01-237-2652
NSN 6150-01-442-6514
NSN 5855-01-482-6164
NSN 6145-01-436-0826
NSN 5950-00-430-8529
NSN 5960-01-350-2925
NSN 5998-01-590-6699
NSN 2925-00-816-8765
NSN 5910-01-659-2445
NSN 5935-00-768-2973