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 5910-01-268-4486
NSN 5950-01-418-7327
NSN 5835-01-371-8759
NSN 5998-00-161-1942
NSN 6320-01-315-6450
NSN 5945-01-279-0325
NSN 5985-01-634-0635
NSN 5950-00-430-5671
NSN 6145-01-634-0388
NSN 5835-00-660-4523
NSN 6645-00-887-0122
NSN 6685-01-552-1720