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 6650-01-107-0474
NSN 6645-00-435-5610
NSN 6110-01-408-6378
NSN 5905-01-382-6965
NSN 6645-00-330-2813
NSN 5920-00-981-5803
NSN 5965-01-583-0541
NSN 6240-00-915-1705
NSN 6650-00-498-2416
NSN 5920-01-592-5387
NSN 5895-01-240-4455
NSN 6685-01-135-6921