51-58101-11 is a Hydraulic Seal (Gasket), used in the P-51 and B-25 aircraft hydraulic assemblies.Part Number: 51-58101-11Part Type: Gasket - Hydraulic SealID | Thickness: .718 ID | .079 ThickManufacturer: BendixAircraft: P-51, B-25Condition: NSPhotos...