MIL-DTL-52525/10D
TABLE I. Material and finish identification codes. 1/ 2/
PIN code
material/plating
Material
Plating finish
finish
A
Anodize in accordance with MIL-A-8625, type II.
Anodize in accordance with MIL-A-8625, type II and NAVAIR
AN
Aluminum alloy 6061
trivalent chromium pretreatment (TCP) in accordance with
MIL-DTL-81706, type II, class 1A.
or 7075
Bare aluminum with NAVAIR TCP in accordance with
BN
MIL-DTL-81706, type II, class 1A.
Cadmium plating in accordance with SAE-AMS-C-81562, type II,
C
class 3 or SAE-AMS-QQ-P-416, type II, class 2.
Steel 3/
Cadmium plating in accordance with SAE-AMS-C-81562, type II,
CN
class 3 or SAE-AMS-QQ-P-416, type II, class 2 and NAVAIR TCP in
accordance with MIL-DTL-81706, type II, class 1A.
Cadmium plating in accordance with SAE-AMS-C-81562, type II,
YC
class 3 or SAE-AMS-QQ-P-416, type II, class 2.
Chrome-molybdenum
Cadmium plating in accordance with SAE-AMS-C-81562, type II,
steel alloy 4130
DN
class 3 or SAE-AMS-QQ-P-416, type II, class 2 and NAVAIR TCP in
accordance with MIL-DTL-81706, type II, class 1A.
F
Steel 3/
NAVAIR TCP in accordance with MIL-DTL-81706, type II, class 1A.
Chrome-molybdenum
FN
steel alloy 4130
G
Steel 3/
Zinc plating with colorless passivate in accordance with
Chrome-molybdenum
ASTM B633, type VI, Fe/Zn 25.
YG
steel alloy 4130
H
Steel 3/
Zinc phosphate finish in accordance MIL-DTL-16232, type Z, class1.
Chrome-molybdenum
4/
YH
steel alloy 4130
J
Steel 3/
Zinc plating with chromate conversion in accordance with
Chrome-molybdenum
ASTM B633; type II or III, Fe/Zn 5, or ASTM B695, type II, class 5.
YJ
steel alloy 4130
Nickel-copper alloy
K
No additional finish.
UNS N04400
High-chromium nickel
M
No additional finish.
alloy UNS N06690
N
Steel 3/
Zinc aluminum in accordance with ASTM F1136, grade 3, NC.
Chrome-molybdenum
YN
steel alloy 4130
P
Steel 3/
Zinc plating with colorless passivate in accordance with
Chrome-molybdenum
ASTM B633, type VI, Fe/Zn 5.
YP
steel alloy 4130
No additional finish. Passivation in accordance with
S
SAE-AMS2700, type 6 or 7.
Corrosion resistant steel
Passivation above and NAVAIR TCP in accordance with
SN
MIL-DTL-81706, type II, class 1A.
T
Titanium
Anodize in accordance with SAE-AMS2488, type 2.
V
Steel 3/
Zinc-nickel in accordance with SAE-AMS2417, type 1.
W
Steel 3/
Any zinc plating above.
Chrome-molybdenum
YW
steel alloy 4130
Z
Steel 3/
Any zinc plating above with NAVAIR TCP in accordance with
Chrome-molybdenum
MIL-DTL-81706, type II, class 1A.
YZ
steel alloy 4130
1/
All materials and finishes shall be in accordance with MIL-DTL-52525.
2/
Embitterment test need not be run.
3/
All steels except 4130.
4/
Zinc phosphate finish is hexavalent chromium free.
3
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