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 5835-01-143-9143
NSN 5920-01-314-1429
NSN 6135-01-190-2628
NSN 5950-01-413-3226
NSN 6320-01-552-8721
NSN 6685-01-023-8563
NSN 6240-01-068-3491
NSN 5910-01-543-0039
NSN 5905-00-328-2566
NSN 6610-01-172-0897
NSN 5965-00-139-1039
NSN 5895-01-468-3891