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 6685-00-341-1877
NSN 6645-01-448-0622
NSN 5935-01-429-9941
NSN 6150-01-013-9967
NSN 6145-00-136-9132
NSN 5895-00-866-7789
NSN 6110-00-611-7470
NSN 5975-00-618-0161
NSN 6620-01-148-4354
NSN 5920-01-194-1531
NSN 5998-01-265-1366
NSN 5915-01-418-9996