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 6150-01-235-4037
NSN 6220-01-281-8848
NSN 5915-00-357-7253
NSN 5996-00-255-5567
NSN 6645-00-238-6170
NSN 6610-00-437-5681
NSN 5985-01-259-3292
NSN 6105-00-045-7930
NSN 6685-01-385-7049
NSN 5855-01-464-3152
NSN 6135-01-370-2599
NSN 4140-00-449-7702