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 4140-01-423-0731
NSN 5960-00-003-0904
NSN 5960-01-485-7532
NSN 6320-01-082-2970
NSN 6220-00-925-0522
NSN 5950-01-406-2849
NSN 6135-00-284-1406
NSN 2925-01-208-6638
NSN 5835-01-281-7281
NSN 5985-01-502-4639
NSN 5996-01-622-2744
NSN 5930-01-327-9773