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.)
Classification: Nuts of iron or steel
NSN 4140-01-172-4637
NSN 5930-01-194-5767
NSN 4140-01-644-6211
NSN 6220-01-085-0841
NSN 5930-00-008-3092
NSN 5960-01-624-1170
NSN 5998-01-408-5005
NSN 5998-00-859-8578
NSN 5975-01-272-5220
NSN 5930-01-545-4838
NSN 5990-00-251-0965
NSN 5950-00-933-9195