Repair Kit, Series Not Applicable, Compatible with Grainger Part Number 4F740, Product Type Repair Kit, Compatible with Manufacturer Part Number 0523-V191Q-SG588DX, Compatible with Series Not Applicable, Compatible with Brand Gast, Includes (2) Felt Spacers (AK524), (2) O-rings (AK473), (4) Vanes (AH850A), Gasket (AK521)