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 6685-01-471-2140
NSN 5855-01-561-8630
NSN 5999-01-496-2820
NSN 6610-00-622-0955
NSN 2925-01-197-7864
NSN 6645-00-881-1075
NSN 6145-01-171-4011
NSN 5965-01-016-9933
NSN 6240-01-015-2370
NSN 6620-01-440-1579
NSN 2925-00-684-7708
NSN 7035-00-546-2560