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 6620-01-448-0572
NSN 5975-01-530-3318
NSN 5935-01-415-2205
NSN 5998-01-646-2353
NSN 6645-01-590-5534
NSN 6135-01-282-4326
NSN 5920-01-573-7227
NSN 5935-00-829-3714
NSN 6130-01-135-9633
NSN 5920-00-771-7280
NSN 5925-01-359-4814
NSN 6685-00-769-5697