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.)
NSN 5925-01-285-7367
NSN 5996-00-782-7231
NSN 6685-01-483-8542
NSN 5996-01-433-9067
NSN 5985-00-392-0522
NSN 2925-01-052-0636
NSN 5999-01-269-5572
NSN 5935-00-477-7690
NSN 6110-00-989-4629
NSN 2925-00-159-9003
NSN 6110-01-064-3801
NSN 6130-01-383-9520