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 5855-01-430-5459
NSN 5975-01-170-4131
NSN 6220-01-106-3215
NSN 5920-01-354-0220
NSN 5935-00-502-0342
NSN 5905-00-466-3088
NSN 5895-00-897-1204
NSN 2925-01-444-2061
NSN 5950-01-528-8796
NSN 6620-00-104-6937
NSN 6240-01-633-9357
NSN 5895-00-781-8636