The ornamental design for a gasket, as shown and described.
FIG. 1 is a front elevational view of the gasket embodying my new design, the rear elevational view being a mirror image thereof;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view, the left side elevational view being a mirror image thereof;
FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG. 2; and,
FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG. 2.
The evenly dashed broken lines are for the purpose of illustrating portions of a gasket that form no part of the claim. The dash dot lines depict boundaries of the claim that form no part of the claim.