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 5999-01-204-2875
NSN 5930-01-170-1261
NSN 5905-01-445-6642
NSN 6105-01-621-5366
NSN 5935-01-495-4134
NSN 4140-01-444-7286
NSN 6130-00-453-9204
NSN 5895-01-474-6161
NSN 5910-00-584-6484
NSN 5950-01-286-5170
NSN 5975-00-333-7201
NSN 5960-00-140-9583