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 6685-01-455-6677
NSN 6145-01-467-7435
NSN 4140-01-056-9314
NSN 6610-01-593-8179
NSN 5925-01-574-8523
NSN 5855-01-191-3404
NSN 2925-01-196-6187
NSN 5910-01-417-4315
NSN 6220-00-295-3594
NSN 5935-01-514-9102
NSN 5975-00-448-3179
NSN 6685-01-487-2340