The ornamental design for a nozzle, as shown and described.
FIG. 1 is a top view of a nozzle;
FIG. 2 is a bottom view of the nozzle depicted in FIG. 1;
FIG. 3 is a front view of the nozzle depicted in FIG. 1;
FIG. 4 is a front and right perspective view of the nozzle depicted in FIG. 1;
FIG. 5 is a rear view of the nozzle depicted in FIG. 1; and,
FIG. 6 is a right side view of the nozzle depicted in FIG. 1, where the left side view is mirror image of FIG. 6.
The oval shaped broken line adjacent to the outer perimeter in FIG. 2 depicts the boundary between the claimed and unclaimed portions of the nozzle and forms no part of the claimed design. All other broken lines depict portions of the nozzle that form no part of the claimed design.