2a and b8
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 6110-00-563-3695
NSN 4140-01-014-3454
NSN 5965-00-083-8157
NSN 6220-00-517-9300
NSN 6110-00-797-7559
NSN 6320-01-211-6578
NSN 5998-01-391-9819
NSN 5965-00-351-7460
NSN 5930-01-605-3715
NSN 5996-00-691-6554
NSN 6240-01-053-0666
NSN 6610-00-172-7658