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 6650-01-172-5502
NSN 5930-01-023-3078
NSN 5835-00-334-6556
NSN 5925-01-655-6970
NSN 6220-01-121-7391
NSN 6685-00-287-7564
NSN 6105-01-067-7197
NSN 7035-01-202-4842
NSN 5930-00-585-3507
NSN 6220-01-422-2774
NSN 5965-01-286-6548
NSN 5895-01-531-9859