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 6610-01-304-3226
NSN 6645-01-376-8022
NSN 6135-01-045-1504
NSN 5855-01-649-3606
NSN 5855-01-525-9626
NSN 5855-01-504-6080
NSN 6130-01-025-6770
NSN 5945-01-351-1871
NSN 5999-01-348-0769
NSN 5920-01-270-0916
NSN 6110-01-388-2958
NSN 5920-01-209-6368