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 5990-00-252-1702
NSN 6650-00-337-7464
NSN 6610-01-019-5827
NSN 2925-00-816-8765
NSN 6240-00-939-5501
NSN 6130-01-531-7135
NSN 5996-01-476-2131
NSN 6620-00-606-0446
NSN 6110-00-005-7878
NSN 5930-01-153-2646
NSN 7035-00-173-2281
NSN 5910-00-173-4346