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 6320-01-067-0474
NSN 6145-01-396-0060
NSN 5975-01-025-9990
NSN 5996-01-497-5835
NSN 5996-01-172-3104
NSN 6135-01-026-9960
NSN 5999-01-553-1285
NSN 5855-00-688-9954
NSN 2925-01-650-3412
NSN 7035-00-155-9513
NSN 4140-01-179-0199
NSN 5999-00-001-2564