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 5895-01-148-2156
NSN 5975-01-027-1642
NSN 6150-01-134-1001
NSN 5925-00-065-8861
NSN 2925-01-386-7392
NSN 6220-01-186-9750
NSN 5920-01-261-6358
NSN 5950-00-458-1829
NSN 5915-00-944-5286
NSN 5835-00-009-2862
NSN 5960-00-402-9390
NSN 5975-01-492-4309