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 6320-01-185-3857
NSN 5996-00-010-9395
NSN 5915-01-529-9418
NSN 6645-01-297-3368
NSN 5930-01-247-5128
NSN 5915-01-468-0053
NSN 5935-01-069-4500
NSN 5925-01-339-6540
NSN 5960-00-951-7284
NSN 5985-01-085-6288
NSN 4140-00-733-7936
NSN 5990-01-487-0871