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 6610-01-330-7839
NSN 5920-01-120-6992
NSN 5999-00-987-1534
NSN 6145-01-091-8026
NSN 5910-01-627-1089
NSN 6130-01-283-2548
NSN 5920-01-381-0963
NSN 6240-01-105-1399
NSN 6130-01-332-2005
NSN 5945-01-397-4216
NSN 6130-01-070-9696
NSN 5999-01-382-9776