FIG. 1 is a perspective view of a nozzle showing my new design; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a right side elevation view thereof, the left side elevation being a mirror image thereof; FIG. 5 a top view thereof; and, FIG. 6 is a bottom view thereof. The broken lines are for purposes of illustration and form no part of the claimed design.