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 6135-01-514-1725
NSN 5990-00-832-2557
NSN 6150-00-591-7994
NSN 6610-00-651-5661
NSN 6145-01-220-7398
NSN 6620-01-506-9144
NSN 5920-00-159-7638
NSN 6220-00-635-4424
NSN 6110-01-585-9960
NSN 6645-01-538-5041
NSN 5925-00-595-9394
NSN 5855-01-532-7513