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 5920-00-102-3792
NSN 5835-00-170-5238
NSN 5930-01-532-3989
NSN 5915-01-474-1425
NSN 6645-00-559-3623
NSN 6110-00-170-6520
NSN 5920-00-556-2704
NSN 5915-00-233-4501
NSN 5935-01-461-2477
NSN 6150-00-061-3106
NSN 5925-01-310-7662
NSN 5915-01-396-9413