Form: This specification covers leather tanned with chromium salts and retanned with vegetable tanning material.

Application: Primarily for parts, such as packings, washers, and back-up rings, requiring resistance to fuel and to hot, petroleum-base lubricating oil.

Safety - Hazardous Materials: While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.