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 2925-01-113-6904
NSN 4140-01-303-8271
NSN 5910-00-438-0488
NSN 5990-00-495-2859
NSN 5910-01-127-6923
NSN 5965-01-224-4993
NSN 5855-00-444-2298
NSN 6150-01-070-3386
NSN 7035-01-018-5087
NSN 5996-01-321-3092
NSN 6150-01-561-6461
NSN 5930-00-138-5235