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 6645-00-495-4491
NSN 6145-00-840-6685
NSN 5915-01-166-5712
NSN 6110-00-468-4064
NSN 6610-01-298-8667
NSN 5985-00-399-5005
NSN 5985-00-317-8237
NSN 5855-00-472-2055
NSN 6145-01-216-6436
NSN 5935-01-075-9503
NSN 2925-01-565-6410
NSN 6220-00-635-8818