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 6685-01-173-7866
NSN 5960-00-070-4399
NSN 6130-01-458-6407
NSN 5985-01-222-0940
NSN 6135-01-265-1384
NSN 6130-01-088-6693
NSN 5910-01-427-3819
NSN 5965-01-456-6622
NSN 6110-01-095-9687
NSN 5930-01-510-3913
NSN 2925-01-196-6187
NSN 5985-01-263-3555