All Categories > Oil Seals > Inch Measurement Oil Seals > National P/N 340826 Download PDF Download PDF Printable Page Email This Page Save To Favorites Please wait… National P/N 340826, Inch Measurement Oil Seals List Price QUOTE larger image Oil seals are vital to the daily operation of most factories and a wide range of industrial and commercial equipment, They are available in inch and metric dimensions both single and double lip design. Various lip materials are available to suit design requirements such as temperature and chemical resistance. These range from Nitrile to Viton®. Unit of Measure: Imperial Specifications (d) Shaft Diameter 0.312 in (D) Outer Diameter 0.5000 in (b) Width 0.125 in TCM P/N 030501VC