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 5965-00-417-8182
NSN 5910-00-633-2351
NSN 5930-01-398-4103
NSN 5910-01-110-9317
NSN 5960-00-313-6715
NSN 2925-01-156-4335
NSN 5950-01-571-1699
NSN 5975-01-202-6884
NSN 5999-00-112-0511
NSN 6220-01-085-4947
NSN 7035-00-048-3723
NSN 6240-01-396-0940