Seal/O-Ring Type: Standard Primary Sealing Material: Rubber Cross Section Diameter (in): 0.275 Inside Diameter (in): 11.315 Outside Diameter (in): 11.866 Hardness (Shore A): 75 SAE AS568 Dash Size: - Color: Black Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant. Coating: None Color Notes: Actual o-ring color may differ from image. Notes: Dimensions and material descriptions provided for reference only. Material: NBR (75)