18-1/16" Shaft Dia; 20-1/16" Housing Bore; 13/16" Nominal Width; Mill-Right N Lip; Split Seal; 13/16" Actual Width; Spring Loaded; 1 Sealing Lips; Stainless Steel Finger Lip Retainer; Rubber Case; 23-L Seal Design Code

18-3/4" Shaft Dia; 20.062" Housing Bore; 25/32" Nominal Width; Nitrile Lip; Split Seal; 25/32" Actual Width; Not Spring Loaded; 1 Sealing Lips; No Lip Retainer; Rubber Case; 143A2 Seal Design Code

18-1/4" Shaft Dia; 20-1/16" Housing Bore; 3/4" Nominal Width; Silicone Lip; Split Seal; 3/4" Actual Width; Spring Loaded; 1 Sealing Lips; Stainless Steel Finger Lip Retainer; Rubber Case; 23-L Seal Design Code

Oil Seal; 18-1/4" Shaft Dia; 20.062" Housing Bore; 3/4" Nominal Width; Silicone Lip; Split Seal; 3/4" Actual Width; Spring Loaded; 1 Sealing Lips; Stainless Steel Finger Lip Retainer; Rubber Case; 23-L Seal Design Code