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 5990-01-465-9235
NSN 5998-01-021-3043
NSN 5998-01-446-7326
NSN 5945-00-758-7319
NSN 5975-00-815-2160
NSN 5996-01-336-1479
NSN 6105-00-003-2069
NSN 6150-01-065-8948
NSN 6145-01-594-2389
NSN 6320-01-554-0901
NSN 6320-01-090-8296
NSN 5855-01-472-8320