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 5920-01-550-2763
NSN 4140-01-237-7969
NSN 6220-00-660-5539
NSN 6685-01-433-7958
NSN 5910-01-283-1762
NSN 5910-01-477-1022
NSN 6135-00-542-6216
NSN 5895-01-451-4341
NSN 5960-01-287-4187
NSN 6320-01-439-5264
NSN 6645-01-434-2648
NSN 5965-00-788-5466