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 6130-00-065-9995
NSN 5985-01-346-6747
NSN 5960-01-564-5044
NSN 6220-01-661-3514
NSN 6645-00-521-0353
NSN 5855-01-658-4510
NSN 6320-01-227-2648
NSN 6145-01-181-6198
NSN 5950-01-606-2922
NSN 6610-01-296-2104
NSN 5935-00-984-1509
NSN 5930-00-170-5567