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 6685-01-422-1571
NSN 6135-01-435-8451
NSN 6620-00-534-5380
NSN 5915-00-006-3205
NSN 5975-01-233-6636
NSN 5835-01-077-6278
NSN 5985-01-107-9879
NSN 5920-01-032-4756
NSN 5915-01-602-9324
NSN 6650-01-099-8618
NSN 6610-00-239-2374
NSN 5910-01-551-2090