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 5998-01-557-5375
NSN 5915-01-377-2613
NSN 6320-01-556-2011
NSN 6685-01-378-6214
NSN 6145-00-954-6812
NSN 5905-00-807-4954
NSN 6685-00-250-5426
NSN 5910-00-168-3466
NSN 6105-00-073-4424
NSN 7035-01-641-2237
NSN 6130-01-419-9589
NSN 5895-00-894-3762