Elastomeric sealing spring gasket for a filter assembly

A spin-on filter comprising:

• a housing shell;
• a filter element positionable within the housing shell and comprising a filter media and an endplate, the endplate defining an endplate through-hole;
• a nutplate positionable within the housing shell, the nutplate defining a nutplate through-hole;
• and
• a gasket comprising:
• a central body defining a gasket through-hole, at least a portion of a lower portion of the central body extending into the endplate through-hole and at least a portion of an upper portion of the central body extending into the nutplate through-hole, and
• a spring-loaded extension circumferentially surrounding and extending radially from the central body, the spring-loaded extension being axially flexible between an expanded position and a compressed position,
• the spring-loaded extension forming and maintaining a first seal with the endplate and maintaining contact with the nutplate as the spring-loaded extension moves between the expanded position and the compressed position,
• wherein the endplate through-hole, the nutplate through-hole, and the gasket through-hole are axially aligned with each other.

A spin-on filter comprising:

• a housing shell;
• a filter element positionable within the housing shell and comprising a filter media and an endplate, an inner surface of the endplate defining an endplate through-hole;
• a nutplate positionable within the housing shell;
• and
• a gasket comprising:
• a central body positioned at least partially within the endplate through-hole, the central body comprising at least one rib along an outer surface of the central body, the at least one rib forming a gap between the outer surface of the central body and the inner surface of the endplate, and
• a spring-loaded extension circumferentially surrounding and extending radially from the central body, the spring-loaded extension being axially flexible between an expanded position and a compressed position,
• the spring-loaded extension forming and maintaining a first seal with the endplate and maintaining contact with the nutplate as the spring-loaded extension moves between the expanded position and the compressed position.