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 5910-01-485-8128
NSN 6135-00-553-7995
NSN 6135-01-512-8740
NSN 6650-00-020-2368
NSN 6135-00-951-3426
NSN 5950-01-224-7506
NSN 6685-01-188-7379
NSN 5925-00-986-7314
NSN 5999-01-492-5856
NSN 2925-01-068-3844
NSN 6220-01-441-0508
NSN 5855-01-354-3463