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 5915-00-138-3488
NSN 5990-00-351-5479
NSN 6320-01-240-4637
NSN 6220-00-104-8129
NSN 6105-01-547-5645
NSN 6110-01-281-8858
NSN 7035-01-113-6492
NSN 5975-01-127-2548
NSN 5905-00-584-5009
NSN 5998-01-382-8035
NSN 6240-00-128-0267
NSN 4140-01-285-7854