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 6685-01-012-7556
NSN 6220-00-866-6887
NSN 6135-01-108-6057
NSN 6620-00-286-5721
NSN 6220-01-114-6977
NSN 5905-01-410-7436
NSN 6135-01-142-2417
NSN 5935-01-410-6971
NSN 6240-01-108-6766
NSN 5925-00-231-3660
NSN 5835-00-857-4486
NSN 5960-00-220-5164