F1941 Chromate Finish
Designation |
Type |
Typical Appearance |
A |
Clear |
Transparent colorless with slight iridescence |
B |
Blue-Bright |
Transparent with a bluish tinge and slight iridescence |
C |
Yellow |
Yellow iridescent |
D |
Opaque |
Olive green, shading to brown or bronze |
E |
Black |
Black with slight iridescence |
F |
Organic |
Any of the above plus organic topcoat |
Note 1 – Coated fasteners with trivalent chromite (Cr+3) are not subjected to the required yellow, opaque and black color.
Note 2 – When fasteners are coated with trivalent chromite (Cr+3) the classification code shall be amended with the letter ‘T’ |