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 6685-01-262-1627
NSN 6645-01-463-3024
NSN 5950-01-160-8176
NSN 5945-00-447-9950
NSN 6145-01-272-3365
NSN 6110-00-168-8683
NSN 5925-01-441-9624
NSN 5960-01-575-5603
NSN 5895-01-087-3989
NSN 6645-01-397-7277
NSN 2925-01-411-4666
NSN 6130-01-526-7393