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 6320-01-449-1014
NSN 5915-01-323-6657
NSN 5996-01-394-1110
NSN 5945-00-966-8638
NSN 5965-01-541-6788
NSN 5998-01-494-7398
NSN 5945-00-793-5128
NSN 5855-00-548-4742
NSN 5835-00-554-0399
NSN 7035-01-112-9375
NSN 2925-01-074-9102
NSN 5905-01-446-7699