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.)
Classification: Nuts of iron or steel
NSN 6610-01-219-6255
NSN 6145-00-433-4079
NSN 6240-00-793-7969
NSN 5998-01-106-4218
NSN 5910-00-497-1152
NSN 5999-01-270-7810
NSN 5996-00-005-4257
NSN 5930-01-274-7907
NSN 5975-01-292-2960
NSN 5895-00-205-2924
NSN 5855-00-149-0766
NSN 6105-01-322-6769