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 6240-01-412-3928
NSN 6685-01-020-7235
NSN 6650-01-631-6576
NSN 5945-01-237-2388
NSN 6145-00-360-7760
NSN 6240-00-913-1657
NSN 6320-00-107-5291
NSN 5960-01-021-7207
NSN 4140-01-286-5632
NSN 6620-01-394-0365
NSN 2925-01-194-9737
NSN 5925-01-182-2248