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 6645-00-315-9254
NSN 6150-01-555-7768
NSN 5965-00-954-3011
NSN 6150-00-983-3176
NSN 5999-01-441-3101
NSN 5999-00-846-0009
NSN 5915-01-128-9239
NSN 5895-00-589-8183
NSN 6685-00-228-3781
NSN 5998-01-085-8508
NSN 6150-01-207-3137
NSN 5965-00-521-0511