MIL-STD-171 Finishing Of Metal And Wood SurfacesThis standard establishes and updates general finish codes and serves as a general guide to the selection of suitable materials, procedures, and system for cleaning, plating, painting and otherwise finishing of metal and wood surfaces.

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MIL-STD-171F

TABLE II. Inorganic finishes, metallic coatings. Finish No. Requirements

* 1.1 Cadmium coatings

* 1.1.1 Plating, AMS-QQ-P-416, type I, without supplementary treatment

1.1.1.1 Class 1, 0.0005 inch (13 μm) thick

1.1.1.2 Class 2, 0.0003 inch (7.6 μm) thick

1.1.1.3 Class 3, 0.0002 inch (5.1 μm) thick

* 1.1.2 Plating, AMS-QQ-P-416, type II, with supplementary chromate treatment;

normal color; not bleached or clear (see finish 6.1.1.2)

1.1.2.1 Class 1, 0.0005 inch (13 μm) thick

1.1.2.2 Class 2, 0.0003 inch (7.6 μm) thick

1.12.3 Class 3, 0.0002 inch (5.1 μm) thick

* 1.1.3 Plating, AMS-QQ-P-416, type III, with supplementary phosphate treatment (see finish 5.1.1)

1.1.3.1 Class 1, 0.0005 inch (13 μm) thick

1.1.3.2 Class 2, 0.0003 inch (7.6 μm) thick

1.1.3.3 Class 3, 0.0002 inch (5.1 μm) thick

*	1.1.4 1.1.4.1	Cadmium coating (vacuum deposited) AMS-C-8837, type I, without supplementary treatment Class 1, 0.0005 inch (13 μm) thick
	1.1.4.2	Class 2, 0.0003 inch (7.6 μm) thick
	1.1.4.3	Class 3, 0.0002 inch (5.1 μm) thick
*	1.1.5 1.1.5.1	Cadmium coating (vacuum deposited) AMS -C-8837, type II, with supplementary chromate treatment, normal color, not bleached or clear (see finish 6.1.1.2) Class 1, 0.0005 inch (13 μm) thick
	1.1.5.2	Class 2, 0.0003 inch (7.6 μm) thick
	1.1.5.3	Class 3, 0.0002 inch (5.1 μm) thick
*	1.1.6	Cadmium coating (vacuum deposited) AMS -C-8837, type III, with supplementary phosphate treatment (see finish 5.1.1)
	1.1.6.1	Class 1, 0.0005 inch (13 μm) thick
	1.1.6.2	Class 2, 0.0003 inch (7.6 μm) thick
	1.1.6.3	Class 3, 0.0002 inch (5.1 μm) thick
*	1.1.7	Cadmium coating, mechanically deposited, AMS -C-81562, thickness and supplementary treatment as specified

* 1.2 Chromium coatings

* 1.2.1 Decorative plating, AMS-QQ-C-320, class 1

1.2.1.1 Type I, bright

1.2.1.2 Type II, satin

1.2.2 Engineering plating, AMS-QQ-C-320, class 2; thickness and undercoating, if necessary, as specified

1.2.2.1 Use finish 1.2.2

1.2.2.2 Use finish 1.2.2

1.2.2.3 Use finish 1.2.2

1.2.2.4 Use finish 1.2.2

1.2.2.5 Use finish 1.2.2

*General finish requirement headings shall not be specified. The specific finish numbers(s) only shall be specified. See page iii for the proper method of specifying finishes