1 1/8 inch
No other part numbers with same form, fit, and function found.
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.)
NSN 6220-00-115-2909
NSN 5895-01-355-2963
NSN 5920-01-545-7066
NSN 5975-01-412-0782
NSN 6685-01-056-1260
NSN 6620-00-079-4615
NSN 6320-00-228-5678
NSN 5835-01-060-8123
NSN 5999-01-257-7088
NSN 5996-01-146-6810
NSN 6130-01-361-9934
NSN 7035-01-434-1986