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 5895-01-244-2659
NSN 6320-01-333-5782
NSN 5985-00-967-0476
NSN 5960-01-503-0362
NSN 6150-01-128-7544
NSN 5945-01-130-1547
NSN 6130-00-688-5603
NSN 5950-00-219-6537
NSN 5998-01-349-6518
NSN 5935-01-185-1680
NSN 5996-01-270-3679
NSN 6135-00-583-3966