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: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6130-01-090-6999
NSN 6130-01-409-2867
NSN 6135-01-633-8502
NSN 6620-01-440-9810
NSN 5920-01-199-2931
NSN 5975-01-506-0454
NSN 6110-00-271-9928
NSN 5950-01-171-3536
NSN 4140-01-329-4836
NSN 5855-01-444-3916
NSN 5960-00-073-1272
NSN 5998-01-123-0072