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 6610-01-605-1509
NSN 6645-00-955-7997
NSN 6105-00-606-4596
NSN 5975-00-281-5587
NSN 6685-01-494-9751
NSN 5930-00-819-6166
NSN 5915-01-301-6093
NSN 6220-01-570-5450
NSN 5855-01-587-9900
NSN 7035-00-483-8630
NSN 5945-01-356-8431
NSN 5855-01-051-4143