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 6320-01-592-6248
NSN 6220-01-041-2194
NSN 6220-01-143-5761
NSN 6685-00-088-4539
NSN 6110-01-555-7446
NSN 6685-01-265-3754
NSN 5999-01-571-1324
NSN 5945-00-630-6075
NSN 5985-01-157-8894
NSN 6685-01-168-5158
NSN 6110-01-517-9304
NSN 6220-00-676-0904