Dash Size (in): 227 Seal/O-Ring Type: Standard Primary Sealing Material: Rubber Cross Section Diameter (in): 0.139 Inside Diameter (in): 2.109 Outside Diameter (in): 2.387 Hardness (Shore A): 75 SAE AS568 Dash Size: -227 Color: Dark Blue Material: FKM - Fluoroelastomer Material Description: FKM rubber is capable of service temperatures of -40 to 150C and is resistant to air, fuel (including bio-diesel), lubricants and oils. FKM rubber should not be used in applications that require resistance to water or coolant. Coating: PTFE coating protects the O-Ring from installation damage and provides ease of assembly. Color Notes: Actual o-ring color may differ from image. Notes: Dimensions and material descriptions provided for reference only.