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 6145-01-210-7992
NSN 6110-01-479-9523
NSN 6220-01-643-5601
NSN 5910-01-361-9106
NSN 6320-00-937-5625
NSN 6620-01-646-2751
NSN 7035-01-204-7481
NSN 6110-01-029-3403
NSN 5965-00-424-9636
NSN 5920-01-582-4500
NSN 2925-00-964-7128
NSN 7035-00-849-5526