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 5996-00-153-3216
NSN 6685-01-024-9922
NSN 6130-01-446-7404
NSN 6150-00-933-9803
NSN 6620-00-202-5122
NSN 6620-01-106-3553
NSN 7035-01-394-3169
NSN 6620-00-273-8735
NSN 5930-01-529-0685
NSN 6135-00-753-2276
NSN 5975-00-135-6607
NSN 5975-01-295-4179