Replacement O-Rings for most 1/4-28 male threaded fittings. Enlarge Replacement_O-Rings_14-28 × CAD Model Download CAD File × Step File Download IGS File Download Add to Parts List Message Overview The OR-1428 Replacement O-Ring is used on a variety of Beswick 1/4-28 male threaded fittings. Add to Parts List × Create New Parts List