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 6320-01-267-5117
NSN 6135-01-138-4895
NSN 5835-01-286-6499
NSN 6645-01-087-7345
NSN 6685-00-926-4337
NSN 5905-01-042-5045
NSN 5925-00-834-0272
NSN 5935-00-231-5545
NSN 5975-01-381-2763
NSN 5990-01-307-4489
NSN 6645-00-715-1531
NSN 5930-01-004-2601