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 6620-01-074-9377
NSN 6320-00-456-2092
NSN 6130-00-061-2091
NSN 5998-01-441-1060
NSN 5925-00-353-0612
NSN 5915-01-531-4467
NSN 5950-00-510-1743
NSN 6110-01-570-0550
NSN 5950-00-518-4645
NSN 6150-01-468-9983
NSN 5985-01-613-5061
NSN 5835-01-616-6131