FOR STEEL
Cadmium – (6a, 6b, 7, 8): Bright silvery supplementary treatments for Type II can be golden, iridescent. Corrosion resistance is very good
Black Oxide – (11a, 11b): Black oxide coatings; without supplementary preservative treatment are used when a black surface is required. Limited corrosion protection under mildly corrosive conditions, For decorative purposes or decrease in light reflection.
Chromium Platings – (22): Provides a bright decorative finish; corrosion protection; wear resistance and pleasing appearance.
Chromium Satin – (27): Known as industrial or hard chromium; provides wear and abrasion resistance and incidental corrosion protection of parts as the specified thickness of the plating may afford.
Zinc Plate – (27a, 27b, 27c, 27d, 27e): Electrodeposited zinc coatings applied to iron, steel, stainless steel and brass articles provides protection from corrosion. The service life of zinc coating is a function of its thickness and the type of environment to which it is exposed. Bright or dull finish is acceptable.
Black Zinc – (31): Provides corrosion resistance, decorative, used on steel alloys.
Solder Plate – (28): Provides corrosion protection and solderability.
Black Phosphate – (30): Provides corrosion resistance; also acts as a lubricant.
Chromium Engineering – (24): Engineering chromium is usually applied directly to base metal and is finished by grinding to the specific dimensions.
Black Finish – (32): Is a decorative finish, used on steel alloys.
Lubricant – Solid Film – Heat Cured – Corrosion inhibiting -(34a, 34b): Reduces wear and prevents galling when used in steel alloys.
Finish Type
| 1 | No finish | NO FINISH |
2 | Anodized (Dk. Gray) | ANODIZE-MIL-A-8625F, Type II – Class 2 – (Sulphuric) Hot Water Seal. (Dk. Gray) |
| 3a | Anodized (Clear) | ANODIZE-MIL-A 8625F, Type II – Class I – (Sulphuric) Hot water Seal. (Clear) |
| 3b | Anodized (Blue) | ANODIZE-MIL-A-8625F, Type II – Class 2 – (Sulphuric) Hot Water Seal. (Blue) |
| 3c | Anodized (Red) | ANODIZE-MIL-A-8625F, Type II – Class 2 – (Sulphuric) Hot water seal (Red) |
| 4a | Anodized (Yellow Green) | ANODIZE-MIL-A-8625F, Type II – Class 2 – (Sulphuric) Dichromate Seal (Yellow Green) |
| 4b | Anodized (Dichromate) | ANODIZE-MIL-A-8625F- Type II (Sulphuric) Dichromate Seal (Red) |
| 4c | Anodized (Dyed Gold) | ANODIZE – MIL-A-8625F-Type II Class 2 (Dyed Gold) |
5 | Anodized (Black) | ANODIZE-MIL-A-8625F, Type II – Class 2 Hot water Seal (Black) |
6a | Cadmium Plate Clear | CADMIUM PLATE QQ-P-416-F-Type I-Class 2-Clear Chromate |
| 6b | Cadmium Plate Color | CADMIUM PLATE, QQ-P-416-F-Type II- Class 2 Color Chromate Finish” |
| 7 | Cadmium Commercial Plate, | CADMIUM PLATE COMMERCIAL – Type I, Class 3 |
| 8 | Cadmium Color Chromate Plate | CADMIUM PLATE QQ-P-416-F-Type II – Class 3 – Color Chromate Finish |
9a | Nickel Plate, Grade G | NICKEL PLATE – QQN-290-A-Class 1, Grade G, (thickness – .0002- SB) (single layer coating fully bright) |
| 9b | Nickel Plate, Grade F | NICKEL PLATE – QQN290-A Class 1, Grade F (Thickness -.0004-SB) (single layer coating fully bright) |
10 | Silver Plate | SILVER PLATE – QQ-S-365-D, Type II – Grade B (Thickness -.0003) |
11a | Black oxide, Class 4 | BLACK OXIDE – MIL-C-13924-C-AMEND #1 Class 4. For 300 series corrosion resistance steel alloys only. |
| 11b | Black oxide, Class 1 | BLACK OXIDE – MIL-C-13924-C-AMEND #1 – Class 1 (for plain carbon and low alloy steels) |
12a | Passivate, Type I | PASSIVATE – MIL-F-14072-C (ER) AMEND #1 – Type I. (Finish #E300 – Passivate per ASTM-A-380-96) |
| 12b | Passivate, Type II | PASSIVATE QQ-P-35C, Type II.” |
13 | Alodine 1200 | ALODINE 1200 |
| 14 | Gold Flash | GOLD FLASH, (Thickness -.00003 to .00005.) |
| 15 | Gold Flash over Nickel | GOLD FLASH over Nickel Flash, (Thickness – .00003 to .00005) |
| 16 | Gold Plate | GOLD PLATE MIL-G-45204-C-AMEND #1, Type 11 – Grade C – Class-2 (Thickness .0001 0 minimum) |
17 | Tin Plate II | TIN PLATE (Hot dipped) MIL-T-10727-C, Type II |
| 18a | Tin Plate II | TIN PLATE (Electro Deposit) MIL-T-10727-C, Type I |
| 18b | Tin Plate I (solderable) | TIN PLATE (Electro Deposit) MIL-T-10727-C, Type I plus solderability ASTM B 545-92, Class-C” |
19 | Bright Dip Brass | BRIGHT DIP (Brass Finish) |
20a | IRIDITE (Clear) | IRIDITE – MIL-C-5541-E-Class 3 (clear) |
| 20b | IRIDITE (Gold) | IRIDITE – MIL-C-5541-E-Class la (Gold) |
| 21 | Gold Flash over Silver | GOLD FLASH 0.000015 thick over Silver-Plate (0.0003 thickness) |
22 | Chomium Bright | CHROMIUM PLATING – QQ-C-320B (Bright finish) Class 1, Type I |
23 | Chromium Satin | CHROMIUM PLATING – QQ-C-320B (Satin Finish) Class 1, Type II |
24 | Chromium Engineering | CHROMIUM PLATING QQ-C-320-B (Engineering), Class 2 |
25 | Clear Lacquer | CLEAR LACQUER |
26 | Water Dip Lacquer | WATER DIP LACQUER |
27a | Zinc Plate Type I | ZINC PLATE – ASTM B633/85 Type I – Class FE/ZN5-SC-1 (thickness .00025) |
| 27b | Zinc Plate Type II | ZINC PLATE – Colored Chromate – ASTM B633/85 Type II – FE/ZN5- SC-1 (thickness -.00025) |
| 27c | Zinc Plate Clear | |
| 27d | Zinc Plate Phosphate | ZINC PLATE – (Phosphate Coat) -ASTM B633/85 Type V Class FE/ZN5-SC-1 (thickness .00025) |
| 27e | Zinc Plate Olive | ZINC PLATE – per QQ-Z-325 Type II, olive drab. |
28 | Solder Plate | .0001 to -.0003 Thick. Solder per QQS-571-F, SN 60 PG 40 over Nickel Plate thickness 0.0001-0.0005. In AC/W MILP-81728A plus solderability |
29 | Black Chrome Satin | |
30 | Black Phosphate | |
31 | Black Zinc | |
32 | Black Finish | Used on steel parts – strictly cosmetic |
| 33 | Electro-Tin Plate | Over COPPER FLASH – MIL T – 10727C Type I |
34a | Lubricant, Type I | Solid Film – Heat cured – corrosion inhibiting – MIL-L-460101-AMEND #2, Type I, cure temperature of 150 ±3 º C. |
| 34b | Lubricant, Type II | Solid Film – Heat cured – corrosion inhibiting – MIL-L-460101B-AMEND #2, Type II, cure temperature of 204 ±3 º C. |
| 35 | Electro Polish | No military specification assigned – An electric process used to remove the outer layer of material to brighten primarily steel-stainless steel and brass alloys. |