FIG. 1 is a rear perspective view of a nozzle showing my new design; FIG. 2 is a front perspective view thereof; FIG. 3 is a top view thereof; FIG. 4 is a right side elevation view thereof, the left side elevation being a mirror image thereof; FIG. 5 is a bottom view thereof; FIG. 6 is a rear edge view thereof; and, FIG. 7 is a front edge view thereof. The broken lines are for purposes of illustration and form no part of the claimed design.