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 5965-00-244-6055
NSN 6135-01-010-0891
NSN 6620-01-028-6374
NSN 6240-01-498-6802
NSN 5975-01-176-6875
NSN 5950-00-290-5890
NSN 6240-00-766-8034
NSN 5910-01-605-3393
NSN 7035-01-435-4009
NSN 5996-01-333-6644
NSN 5965-01-433-9864
NSN 5930-01-400-6126