National 7188S Oil Seal National(R) 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 Good low temperature capability Low swell in hydrocarbon fluids Delivers quality and reliable performance for every type of repair Design type: spring loaded; single-lip Package Dimensions: 2.000 x 0.625 x 2.000 inches Package Weight: 0.022 lb Package Quantity: 1 UPC: 724956181957 Housing Bore (Inch): 0.999 IN Housing Bore (MM): 25.370 MM Inside Diameter: 0.625 IN Inside Diameter: 15.880 MM Material: Nitrile Outside Diameter: 1.003 IN Outside Diameter: 25.480 MM Outside Diameter (Inch): 1.003 IN Outside Diameter (mm): 25.480 MM Sealing Material: Nitrile Series: 7000 Shaft (Inch): 0.625 IN Shaft (MM): 15.880 MM Thickness: 0.250 IN Thickness: 6.350 MM Type: 33 Unit of Dimension: Inch Width (Inch): 0.250 IN Width (mm): 6.350 MM Country of Origin: MX