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 2925-00-779-3410
NSN 5935-00-481-5906
NSN 5915-00-267-1343
NSN 5925-01-103-4893
NSN 5925-01-458-8262
NSN 5920-00-935-2275
NSN 5985-01-270-0667
NSN 6645-01-438-4118
NSN 6150-01-474-8538
NSN 5835-01-158-6878
NSN 5945-00-273-6916
NSN 6320-00-731-6134