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 5965-00-989-9345
NSN 6130-00-142-9532
NSN 5905-00-990-5559
NSN 5950-01-138-0676
NSN 5975-00-239-0352
NSN 6240-00-684-8181
NSN 6320-01-232-4664
NSN 5990-01-288-7393
NSN 7035-00-206-6123
NSN 6130-01-055-6846
NSN 5920-01-281-7354
NSN 6240-01-487-6459