1) Thrust washers - I.D. = 3/8" - O.D. = 5/8" - Thickness= 0.031" 2) Snap rings ANSI metric, reinforced heavy duty: Ring thicnkess 2 mm - 5160-75 for shaft dia 20mm (alternative code MSR-20) - 5160-98 for shaft dia 25mm (alternative code MSR-25) 500 pcs each