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 6645-00-160-0503
NSN 6220-01-314-8409
NSN 5920-01-272-1354
NSN 6105-01-502-5913
NSN 6110-00-152-1529
NSN 6320-01-296-3181
NSN 6610-01-204-9146
NSN 6110-01-520-4065
NSN 6645-00-406-8114
NSN 6610-01-395-9324
NSN 6620-01-363-4792
NSN 6135-00-194-9354