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 6130-01-398-5931
NSN 6110-00-585-8920
NSN 6240-00-505-6099
NSN 5990-00-902-0986
NSN 5999-00-170-7858
NSN 6105-01-299-1538
NSN 5985-01-658-6712
NSN 6145-01-167-6564
NSN 6110-00-358-1870
NSN 5925-01-063-6247
NSN 6610-01-105-0092
NSN 6145-01-381-0708