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 6645-00-646-6631
NSN 6150-00-356-0530
NSN 5910-01-310-8935
NSN 6320-01-372-1170
NSN 5996-01-633-2867
NSN 5855-01-428-9456
NSN 6645-01-560-9339
NSN 5910-01-656-7420
NSN 6110-01-337-3232
NSN 5835-01-442-6482
NSN 5985-01-168-8546
NSN 6610-01-536-1252