Ms81-2021 Standard Pdf ~repack~ May 2026

Summary for Manufacturers

The is a technical engineering specification used primarily by automotive and heavy machinery manufacturers, such as the Mitsubishi Fuso Truck & Bus Corporation . It defines the permissible deviations for dimensions where no specific tolerance is indicated on a technical drawing, specifically for parts produced via machine cutting . Understanding General Tolerances (Machine Cut) Ms81-2021 Standard Pdf

: The standard class used for most general machining. c (Coarse) : For parts where precision is less critical. Summary for Manufacturers The is a technical engineering

While MS81-2021 is a corporate-specific standard, it is heavily based on international standards such as ISO 2768 , which also defines general tolerances for linear and angular dimensions. c (Coarse) : For parts where precision is less critical

When engineers create technical drawings, they don't always specify a tolerance for every single dimension to avoid clutter. Instead, they refer to a "General Tolerance" standard. The MS81-2021 (Revision 2) serves as the primary annex for general tolerances in machine-cut operations within specific corporate standards like MSF1-2021.

The standard provides specific millimeter (mm) deviation limits based on the nominal length of the part and its chosen tolerance class. Nominal Dimension (mm) m (Medium) c (Coarse) Over 3 to 6 Over 6 to 30 Over 30 to 120 Over 120 to 400 Industry Context and Related Standards