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 5905-01-312-0551
NSN 5835-01-213-0833
NSN 6620-01-523-2273
NSN 5855-00-361-0167
NSN 7035-01-335-8872
NSN 5915-01-074-8462
NSN 5999-00-403-2830
NSN 5950-01-418-0266
NSN 2925-01-474-3363
NSN 6145-01-234-7680
NSN 5855-01-105-7793
NSN 5920-01-232-4839