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 6130-01-423-9287
NSN 5999-00-199-9551
NSN 5905-01-448-1369
NSN 6240-01-529-6624
NSN 5925-00-170-4090
NSN 5950-00-980-2499
NSN 5945-01-059-2605
NSN 5925-01-076-4458
NSN 4140-00-215-8593
NSN 5999-01-447-4227
NSN 6150-00-991-3109
NSN 5990-01-054-3332