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 5925-01-318-9548
NSN 5996-01-064-6969
NSN 6320-00-405-2348
NSN 5960-01-478-2672
NSN 6685-01-421-4403
NSN 6650-01-283-7936
NSN 5895-01-428-9080
NSN 6110-01-530-6212
NSN 6320-01-425-1417
NSN 6110-01-411-7478
NSN 2925-00-801-8456
NSN 6150-01-513-4094