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 5930-01-135-0975
NSN 6650-00-213-7065
NSN 5999-00-518-1007
NSN 5855-01-457-3608
NSN 5910-01-547-4612
NSN 5985-01-469-2626
NSN 6130-00-383-7967
NSN 6620-01-495-7446
NSN 6145-00-011-2390
NSN 6150-01-116-2406
NSN 6320-01-622-5493
NSN 6610-01-451-7081