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 2925-01-656-8217
NSN 6105-00-307-1369
NSN 6320-01-523-4954
NSN 6320-00-521-9350
NSN 6110-00-257-1446
NSN 5985-01-157-6109
NSN 5920-01-530-7444
NSN 6645-00-933-2170
NSN 6110-01-030-6073
NSN 6620-01-613-7600
NSN 5945-01-556-7258
NSN 6645-00-032-5730