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 5996-01-024-9976
NSN 6220-01-320-7585
NSN 7035-00-929-0363
NSN 6620-01-168-8450
NSN 5960-00-900-3508
NSN 6620-01-386-5914
NSN 2925-01-474-3363
NSN 6610-01-428-7779
NSN 5895-00-385-9003
NSN 6145-01-442-8143
NSN 5920-01-301-0190
NSN 5950-00-865-7855