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 6220-01-500-0740
NSN 5990-01-321-2997
NSN 5925-00-361-1943
NSN 5990-00-015-3907
NSN 2925-01-465-3437
NSN 2925-00-845-1480
NSN 5930-01-048-3677
NSN 5935-01-542-9219
NSN 6610-01-342-9774
NSN 5915-00-111-1363
NSN 5905-01-276-1118
NSN 2925-01-166-4589