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 6220-00-410-9233
NSN 5945-01-410-7778
NSN 6150-01-139-6759
NSN 5905-00-349-7055
NSN 5975-01-131-8218
NSN 5990-01-426-7350
NSN 6135-01-627-6921
NSN 6220-01-587-8437
NSN 6240-00-266-6258
NSN 6320-01-478-9351
NSN 5945-01-117-0711
NSN 5925-01-633-9434