Systems, apparatuses, and methods for applying viscous fluid to a component having a primary surface and opposed surfaces perpendicular to the primary surface may include positioning an adjustable nozzle adjacent the primary surface such that first and second contact members of the nozzle, movable relative to each other, contact the opposed surfaces, the first and second contact members being urged toward the opposed surfaces by at least one biasing element of the adjustable nozzle, applying a viscous fluid from a passage in a body of the adjustable nozzle to the primary surface, and moving the adjustable nozzle along the primary surface.