Attributes . 3-15/16" Shaft Dia; 5-1/4" Housing Bore; 1/2" Nominal Width; Mill-Right ES Lip; Split Seal; 1/2" Actual Width; Spring Loaded; 1 Sealing Lips; Stainless Steel Finger Lip Retainer; Reinforced Rubber with Heel Case; 26 Seal Design Code . Names