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 5950-01-062-9814
NSN 5985-01-380-9993
NSN 5996-00-463-1806
NSN 6240-00-841-8734
NSN 2925-01-113-6904
NSN 6110-01-067-2121
NSN 5996-00-921-8612
NSN 5925-01-089-6970
NSN 4140-01-573-7708
NSN 6645-01-162-8023
NSN 5965-00-267-4173
NSN 6610-00-165-5838