3J-1907 Caterpillar O-ring
Cat® O-Rings are used in static sealing and some dynamic applications.
Cat® O-Ring 3J-1907 is made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation, all the characteristics and compatibilities of the Cat® O-Ring 3J-1907 are detailed below.
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.
Cross Section Diameter (in): 0.078
Dash Size (in): 906
Fitting Size (in): 9/16 18
Hardness (Shore A): 90
Inside Diameter (in): 0.468
Material: NBR - Nitrile, Nitrile (NBR)
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.
Notes: Dimensions and material descriptions provided for reference only.
O-Ring Type: Straight Thread O-ring (STOR)
Outside Diameter (in): 0.624
Primary Sealing Material: Rubber
SAE AS568 Dash Size: -906