MIL-STD-186 Protective Finishing For Army Missile Weapon SystemsThis standard establishes the minimum requirements for procedures, materials, and systems for cleaning, plating, painting and finishing metals, wood, electronic materials, parts and assemblies for rockets, guided missiles, and components to protect them from deterioration.

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MIL-STD-186F (MI)

TA8LE X. Group amplification of galvanic couples.

Group No. (See Table X)	Metal or Alloy Description
1	Gold, solid or plated, SAE AMS-2422 and ASTM 8488. Gold foil and Gold leaf. Gold alloys, A-A-53884. Platinum, wrought. Platinum foil, A-A-53475.
2	Rhodium, ASTM 8634 (Plated) and ASTM 8616 (Refined).
3	Silver, solid, or plated, ASTM 8700. Silver alloys
4	Nickel, solid. Nickel plate, SAE-AMS-QQ-N-290 or MIL-C-26074. Nickel-copper alloys, QQ-N-281, QQ-N-286, ASTM A494 and MIL-C-24723 Constantin and monel.
5	Copper, solid or plated, SAE-AMS-2418. Silicon bronze, phosphor bronze, naval bronze,leaded bronze, hydraulic bronze, valve bronze,manganese bronze, red brass, acid-resistant bronze, manganin, gun metal, and Parr's alloy. Copper-beryllium, ASTM 8 196 and ASTM 8 197. Copper-nickels, ASTM 8369 Copper-silicons, ASTM-830, ASTM-898, ASTM-898M, ASTM- 899, ASTM-899M, ASTM-8105, ASTM-8124, ASTM-8271, ASTM-8584, ASTM-8644, ASTM-8763. Phosphor-coppers, ASTM 8644. Phosphor-bronze, ASTM 8139. Aluminum bronze, QQ-8-654. 8razing alloys, silver base, AWS C3.5 (Torch brazing), AWS C3.5 (Induction brazing), AWS C3.6 (Furnace brazing) & AWS C3.7 (Aluminum brazing)]. Nickel silvers, ASTM 8122, ASTM 8151, ASTM-8151M, ASTM- 8206, ASTM-8206M. Nickel-chromium, ASTM 8 168 and MIL-8-15382. Austenitic stainless steels within the AISI 300 series: SAE-AMS-T-8506, SAE AMS5560, SAE AMS5563, SAE AMS5564, SAE AMS5565, SAE AMS5566, SAE AMS5567, SAE AMS5569, SAE AMS5570, SAE AMS5571, SAE AMS5639, and ASTM A 793, SAE-AMS-QQ-S-763; classes I, II, III of MIL-C- 24707/3, FS designators 302, 304, 304L, 309, 310, 316, 316L, 321, 347 of ASTM A240, ASTM A666, ASTM A693, SAE AMS 5365, SAE AMS 5366; ASTM A 580, ASTM A 313.