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 5999-01-049-7860
NSN 7035-01-219-9476
NSN 5975-00-946-1390
NSN 6220-00-232-9706
NSN 5915-01-308-3219
NSN 5965-01-129-8551
NSN 5999-01-127-9603
NSN 5915-01-444-4069
NSN 5920-01-566-8777
NSN 5895-01-032-4717
NSN 5990-01-185-9835
NSN 5985-00-613-5647