Comparison : Item # 6640-5000, 5.00" PA6 HS Blue Plate / Bar Stock
Item # 6640-50002448, Nylon 6 HS Blue
Item # C6640-5000-48-5, Nylon 6 HS Blue
Item # C6640-5000-48-6, Nylon 6 HS Blue
Item # C6640-5000-48-8, Nylon 6 HS Blue