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 5905-01-290-8520
NSN 5910-00-299-7265
NSN 5905-01-014-6636
NSN 5895-01-243-7909
NSN 5910-01-648-3588
NSN 6685-00-885-6072
NSN 5998-01-312-4698
NSN 5895-01-390-3680
NSN 5920-01-422-1445
NSN 5996-01-355-8420
NSN 5925-01-122-7983
NSN 6650-00-515-6002