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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5835-01-416-6455
NSN 5975-01-570-6946
NSN 5985-00-401-2883
NSN 6150-01-513-1630
NSN 7035-00-167-7411
NSN 5975-00-647-4968
NSN 5990-00-466-2952
NSN 6650-01-574-7646
NSN 6135-00-246-0324
NSN 6135-00-660-8654
NSN 5950-01-158-9871
NSN 6240-01-131-4454