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 5945-01-594-7192
NSN 5930-01-127-0386
NSN 5945-01-519-8887
NSN 6220-01-009-2475
NSN 5975-01-239-2623
NSN 6130-01-191-9567
NSN 7035-01-533-5502
NSN 6620-01-356-2374
NSN 2925-01-265-2853
NSN 5950-00-243-8275
NSN 5985-01-211-5304
NSN 5905-01-534-5964