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 5950-01-412-0262
NSN 5905-01-222-5338
NSN 5990-01-264-9759
NSN 6650-00-256-9059
NSN 5930-01-555-7912
NSN 5950-01-351-0517
NSN 6685-01-462-5361
NSN 6320-01-462-2295
NSN 6320-01-338-6006
NSN 6685-00-609-8079
NSN 5835-01-045-6371
NSN 6645-00-262-7448