1090080 CATERPILLAR 109-0080: SEAL-O-RING

Dash Size (in): 344
Applications: Automotive air conditioner seals; High temperature flex boot seals; High temperature power steering seals; Higher temperature hydraulic seals; Middle cylinder liner seals
Not Compatible With: Aromatic and oxygenated gasolines; Automotive and aircraft brake fluids; Chlorinated hydrocarbons; Ethers; Ketones; Phosphate ester fluids
Temperature (°F): -40° - 275°
Compatible With: Abrasion resistant; Diesel fuels; Diester lubricants; Ozone; Petroleum oils, greases; Refrigerant HFC - 134a (Non-Freon); Silicone fluids; Steam; Water base engine coolants
Primary Sealing Material: Rubber
Seal/O-Ring Type: Standard
Cross Section Diameter (in): 0.21
Inside Diameter (in): 3.85
Outside Diameter (in): 4.27
Hardness (Shore A): 78
SAE AS568 Dash Size: -344
Color: Black
Material: HNBR (78)
Material Description: HNBR rubber is capable of service temperatures of -40 to 115C and is resistant to fuel, oils, lubricants and offers good abrasion and cut resistance.
Coating: None
Color Notes: Actual o-ring color may differ from image.
Notes: Dimensions and material descriptions provided for reference only.