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 5960-00-068-1457
NSN 6620-01-381-6225
NSN 7035-01-174-1029
NSN 5990-01-201-4852
NSN 2925-01-218-5556
NSN 5910-01-225-6624
NSN 5960-01-197-2759
NSN 7035-01-222-2534
NSN 6320-00-456-2092
NSN 5910-01-385-4261
NSN 5950-01-265-8085
NSN 5950-01-545-2908