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 6130-01-180-8388
NSN 6150-01-500-1302
NSN 5998-00-834-7122
NSN 6220-01-334-3757
NSN 6650-01-090-0719
NSN 6240-00-722-0268
NSN 5990-00-622-1010
NSN 6135-01-048-0910
NSN 5905-00-259-9280
NSN 5965-01-193-5221
NSN 5920-01-644-0973
NSN 5996-01-085-2709