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 2925-01-442-7741
NSN 5895-01-425-2718
NSN 6620-01-342-5953
NSN 4140-01-525-7296
NSN 6610-01-415-5877
NSN 5999-01-608-6195
NSN 5935-00-364-7784
NSN 5999-01-037-4546
NSN 5996-00-916-9235
NSN 5895-01-161-7157
NSN 5910-00-803-9881
NSN 6110-01-199-5024