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 5905-01-238-7729
NSN 5945-01-141-7497
NSN 5999-01-521-4434
NSN 5965-00-074-1317
NSN 4140-00-038-4276
NSN 5895-01-359-2992
NSN 5998-01-617-0400
NSN 5975-01-422-4522
NSN 4140-01-050-8096
NSN 5895-01-442-5190
NSN 5996-00-733-5690
NSN 5905-01-387-8806