GPI 133503-05 Shaft Seal Kit is used on fuel transfer pumps. It includes 906006-92 Compression Spring, 906003-45 Retaining Ring (#19 marked on Illustrated parts drawing, 904001-39 Shaft Seal Washer, 901004-30 O-Ring, 901003-63 O-Ring, Spacer Washer (#18 marked on Illustrated parts drawing) & Slinger Washer( #21 marked on Illustrated parts drawing)