FIG. 1 is a top plan view of a coupling nut in accordance with my design;
FIG. 2 is a top, front, left perspective view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a bottom, right, rear perspective view thereof;
FIG. 5 is a front elevational view thereof, with the rear elevational view being identical thereto; and,
FIG. 6 is a right side elevational view thereof, with the left side elevational view being identical thereto.
The broken lines represent portions of the structure that forms no part of the claim.
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