Comparison : Item # 6640-1500, 1.500" PA6 HS Blue Plate / Bar Stock
Item # C6640-1500-48-24, Nylon 6 HS Blue
Item # 6640-150048120, Nylon 6 HS Blue
Item # C6640-1500-48-1.5, Nylon 6 HS Blue
Item # C6640-1500-48-2, Nylon 6 HS Blue