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 6620-00-586-6460
NSN 6150-01-513-2515
NSN 5895-01-104-5865
NSN 6645-01-049-6116
NSN 5935-00-156-3298
NSN 6130-00-785-2185
NSN 2925-00-149-0760
NSN 5920-01-303-6841
NSN 6650-01-237-4689
NSN 5920-01-139-4384
NSN 6220-01-401-5337
NSN 5999-01-395-2603