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 2925-00-816-8765
NSN 5998-00-754-0663
NSN 5905-01-426-7505
NSN 6220-01-250-5190
NSN 2925-01-347-4208
NSN 5996-01-050-6910
NSN 6685-00-100-1511
NSN 5985-00-361-8863
NSN 5910-01-316-9530
NSN 2925-00-964-7128
NSN 6685-01-398-9807
NSN 6135-01-392-8344