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 6130-00-460-7163
NSN 2925-01-587-3956
NSN 6150-01-574-4216
NSN 5905-01-553-3693
NSN 5905-00-110-7861
NSN 5930-01-485-0364
NSN 5965-00-170-5254
NSN 5999-01-095-3841
NSN 6645-00-789-0800
NSN 5920-00-281-2488
NSN 6645-01-463-3441
NSN 5998-01-380-7483