A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 6150-01-634-0575
NSN 5985-00-623-2198
NSN 4140-00-732-9427
NSN 6105-01-313-3835
NSN 5915-01-359-4847
NSN 6620-00-930-5680
NSN 5945-01-285-4514
NSN 5965-01-514-0932
NSN 5925-01-641-1916
NSN 5910-01-397-4997
NSN 6620-00-557-0844
NSN 6135-00-377-9165