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 5930-00-286-4669
NSN 5998-01-187-4852
NSN 5965-01-063-7894
NSN 6135-00-274-4037
NSN 5925-01-384-4915
NSN 5998-01-592-3900
NSN 6220-00-166-9796
NSN 6620-01-318-7891
NSN 6130-01-284-0269
NSN 6320-01-648-5538
NSN 6145-00-590-8642
NSN 6145-00-406-4471