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 5945-01-586-4329
NSN 2925-01-505-1666
NSN 6110-00-565-5986
NSN 6135-01-010-0891
NSN 5965-01-215-0993
NSN 6645-01-289-6298
NSN 7035-00-238-3662
NSN 6685-01-056-4379
NSN 5925-00-450-5347
NSN 6110-00-333-1174
NSN 5945-00-369-1439
NSN 6135-00-921-6487