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 4140-01-514-6221
NSN 4140-00-999-8100
NSN 2925-01-231-6312
NSN 5985-01-179-1830
NSN 6110-01-574-4274
NSN 5920-01-151-4368
NSN 5965-01-282-4587
NSN 6135-01-644-9348
NSN 5985-00-588-2822
NSN 5905-00-453-3793
NSN 6610-00-553-5103
NSN 5998-01-220-2253