Pilot with no. 4-40unc-2b thd through 1 side
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: Nuts of iron or steel
NSN 6110-01-279-7621
NSN 6220-01-484-5236
NSN 5975-01-236-9806
NSN 5910-00-432-6429
NSN 5999-00-775-6863
NSN 5975-01-592-3439
NSN 6105-00-163-4390
NSN 6110-00-057-2432
NSN 6135-01-519-7879
NSN 5920-01-296-2177
NSN 6220-01-502-9451
NSN 5996-01-561-3230