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 5996-01-418-8485
NSN 6610-00-220-3840
NSN 6320-01-316-6864
NSN 5985-01-197-9347
NSN 6150-01-432-9018
NSN 5990-01-013-8464
NSN 5905-00-336-9097
NSN 7035-00-562-9881
NSN 5998-01-383-3293
NSN 6240-01-099-2472
NSN 6220-00-295-3594
NSN 5985-01-159-7718