This SAE Aerospace Standard (AS) covers requirements for nickel-chromium coatings, black oxide or black phosphate coatings, and alternate coatings for aerospace hand tools.

Classification

Coatings covered by this document shall be of the following types, as specified:

Type I - Nickel-Chromium Coating

Type II - Black Oxide or Black Phosphate Coating

Type III - Alternate Coatings, used in lieu of nickel-chromium plating