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 5950-01-321-6869
NSN 5975-01-555-4360
NSN 6220-00-070-7878
NSN 5965-01-627-0848
NSN 5920-01-340-3802
NSN 6320-01-659-2819
NSN 6610-01-040-6922
NSN 5920-01-488-9390
NSN 6105-01-094-3331
NSN 5895-01-202-7870
NSN 6320-00-108-7049
NSN 5996-01-499-1900