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 5920-01-583-4433
NSN 6150-00-374-9318
NSN 5895-01-138-0196
NSN 5835-01-424-4577
NSN 5935-01-420-6452
NSN 5855-01-451-9877
NSN 6145-01-292-5441
NSN 6220-01-462-4122
NSN 5925-01-539-5578
NSN 6135-01-415-1163
NSN 6110-01-623-5621
NSN 5835-01-606-3086