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MIL-PRF-680

MIL-PRF-680 is a military specification for degreasing solvents established by the United States Department of Defense, which consists of four types of petroleum distillates. The different types are referred to as "Stoddard solvent" (Type I), "141°F solvent” (Type II), "200°F solvent" (Type III), and "141°F d-limonene blended solvent" (Type IV). They are used for degreasing of machine parts in equipment maintenance.

MIL-PRF-680 Product List

Please consult the product page and product description for the specific grade/size you intend to purchase to ensure it will be supplied with MIL-PRF-680 paperwork.

MIL-PRF-680- Product List

Applications of MIL-PRF-680 in Military and Aerospace Maintenance

MIL-PRF-680 and MIL-PRF-680C degreasing solvents are widely used across military and aerospace operations. These specifications cover cleaning compounds critical for maintaining the reliability and safety of weapons systems, ground vehicles, aircraft, and various support equipment. Solvents that meet MIL-PRF-680 standards ensure effective removal of oils, greases, lubricants, coolants, and particulate matter from vital components. Each type of solvent serves a specific role in maintenance tasks: Type I solvents are ideal for hand-wiping and immersion cleaning. Type II solvents are formulated for precision cleaning and the removal of a wide range of soils. Type III solvents offer powerful solvency in low-odour, non-hazardous environments. Type IV solvents are designed for manual cleaning where reduced hazardous material exposure is essential. Solvents compliant with MIL-PRF-680 specifications are vital in supporting military Maintenance, Repair, and Operations (MRO) by ensuring equipment remains mission-ready and in peak operating condition.
Generic Armite Can

MIL-PRF-680 History

AA-9601E was the first specification used for a dry degreasing and cleaning agent needed by the military. It was followed by P-D-680, or Stoddard solvent, which is a federal specification for dry cleaning and degreasing solvents, widely used by the Department of Defense for a range of everyday maintenance operations. Due to its environmental disadvantages, it was cancelled in December 1999.

MIL-PRF-680A simply consists of the four types of petroleum distillates at the top of the page.

MIL-PRF-680B also consists of the four types of petroleum distillates. It directly replaced P-D-680. MIL-PRF-680B has a lower aromatic content than its predecessor, equating to reduced odour and non-volatile residue. However, it still contains the same concentration of VOCs as P-D-680, though is free of Hazardous Air Pollutants (HAPs).

MIL-PRF-680C is the most recent specification, approved in March 2010. It denotes a 62°C flash point, evaporation without residue, and is approved for government and military use.

MIL-PRF-680C Specification Overview

MIL-PRF-680C specifies strict requirements for degreasing solvents used in military and aerospace maintenance. These include low odour, high flash point levels for improved safety, minimal non-volatile residue, and precise evaporation rates. Solvents that meet MIL-PRF-680 standards ensure compliance with critical federal and defence cleaning guidelines.

MIL-PRF-680: Frequently Asked Questions About Military Degreasing Solvents

What is MIL-PRF-680C Type II degreasing solvent?

The MIL-PRF-680C Type II degreaser and cleaner is designed for precision cleaning in aerospace and military applications. It helps ensure that both painted and unpainted metal surfaces remain free from contaminants that could compromise performance.

Where is MIL-PRF-680 commonly used?

MIL-PRF-680 degreasing solvents are commonly used in the maintenance of weapons systems, aircraft, ground vehicles, and equipment across military and aerospace industries to ensure reliable and safe operation.