National 8521S Multi-Purpose Seal National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles. Temperature range: -40DegF to 225DegF / -40DegC to 107DegC Design type: springless; multi-lip Delivers quality and reliable performance for every type of repair Good low temperature capability Low swell in hydrocarbon fluids Package Dimensions: 3.250 x 0.875 x 3.250 inches Package Weight: 0.104 lb Package Quantity: 1 UPC: 724956188338 Footnote: External Bore Housing Bore: 2.684 IN Housing Bore: 68.170 MM Inside Diameter: 1.872 IN Inside Diameter: 47.550 MM Material: Nitrile Outside Diameter: 2.701 IN Outside Diameter: 68.610 MM Sealing Material: Nitrile Series: 8000 Shaft Diameter: 1.872 IN Shaft Diameter: 47.550 MM Thickness: 0.544 IN Thickness: 13.820 MM Type: 200E Unit of Dimension: Inch Width: 0.544 IN Country of Origin: MX