Nickel Plating

AMS2404F   

Replaced AMS-C-26074 and MIL-C-260.

Class 1,2,3,4. 

Gold Plating (Technic Gold 25) 

MIL-G-45204C

99.7% (Type I) and 99.0% (Type II) gold minimum.

Grade C (Knoop Hardness of 130-200).

Class 00 (minimum 0.00002 inches thick). 

Chromate (Irridite14-2) 

MIL-DTL-5541F   

Replaced MIL-C-5541E.

Type 1 for compositions containing hexavalent chromium.

Class 1A for maximum protection against corrosion, painted or unpainted.

Class 3 for protection against corrosion where low electrical resistance is required.