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 6150-00-348-9559
NSN 6110-00-375-5158
NSN 6685-00-915-5601
NSN 5950-00-082-7336
NSN 7035-00-902-8995
NSN 6645-01-009-7678
NSN 4140-01-575-5693
NSN 5930-01-610-4541
NSN 5920-01-410-7740
NSN 5999-01-572-2805
NSN 5935-00-707-3274
NSN 5925-00-469-7683