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 5965-01-472-3664
NSN 5920-00-017-2851
NSN 5910-01-224-6529
NSN 5975-01-006-2808
NSN 5990-00-491-1338
NSN 5960-01-264-9295
NSN 6620-01-231-9731
NSN 6685-00-407-1028
NSN 5855-01-118-2210
NSN 7035-01-413-6697
NSN 5950-01-456-4254
NSN 5905-01-137-3929