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 5915-01-126-9709
NSN 6130-00-683-1011
NSN 6135-01-433-2062
NSN 6685-00-233-6563
NSN 7035-01-455-0445
NSN 2925-01-422-1542
NSN 6105-00-462-9723
NSN 6135-01-626-9374
NSN 6135-00-432-8779
NSN 5998-00-623-2954
NSN 6645-01-157-0762
NSN 4140-00-480-2592