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 6610-01-345-1110
NSN 6135-00-455-2425
NSN 6240-00-280-0186
NSN 5915-00-128-8130
NSN 5935-01-422-0239
NSN 5945-01-119-3690
NSN 6145-00-757-2742
NSN 5895-00-009-4382
NSN 2925-01-015-2354
NSN 6645-01-373-8860
NSN 6220-00-707-5044
NSN 5950-00-034-3945