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 6145-01-486-7175
NSN 5990-01-559-0578
NSN 5910-01-439-2491
NSN 5925-01-324-9472
NSN 6105-00-222-4762
NSN 7035-01-106-3476
NSN 5915-01-023-5936
NSN 6240-01-578-6227
NSN 5915-01-069-2775
NSN 5895-01-283-0260
NSN 6105-01-423-0985
NSN 5999-01-630-5793