MATERIAL: C1050 carbon steel per AMS5085 or 25CD4 or 35CD4 or equivalent.

SURFACE TREATMENT: Cadmium in accordance with AMS-QQ-P-416 Type II, class 3 + Dry film lubricant 5900 in accordance with LN9368 Teil7.

CLASSIFICATION: 900 MPa (at ambient temperature) / 235 °C.

THREAD:
  • PROFILE: ISO M in accordance with NFL 05220.
  • TOLERANCES: in accordance with NFL 05224.
MARKING: + SD in accordance with NFL 22036 on the area indicated on the drawing.

QUALIFICATION AND ACCEPTANCE CONDITIONS: LN 65016.

OPTIONS : Countersunk rivet holes as indicated on the drawing. Add code K after the reference. (ex.: 5LA109MK).

Contact Alcoa for the diameter/type in manufacturing.
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Item #

A - MAX

B

C - MAX

E +0.2 / +0

F ±0.05

H +0.1 / +0

J +0.2 / 0

L - MAX

Thread

3LA109M N/A 3.200 mm N/A 8.500 mm N/A 23.200 mm N/A 0.600 mm N/A N/A N/A 2.500 mm N/A 10.600 mm N/A M3 x 0.5 – 4H5H
4LA109M N/A 5.200 mm N/A 8.500 mm N/A 23.200 mm N/A 0.600 mm N/A 4.200 mm N/A 1.600 mm N/A 2.500 mm N/A 10.600 mm N/A M4 x 0.7 – 4H5H
5LA109M N/A 6.200 mm N/A 9.500 mm N/A 25.200 mm N/A 0.600 mm N/A 5.200 mm N/A 1.600 mm N/A 2.500 mm N/A 10.600 mm N/A M5 x 0.8 – 4H5H
6LA109M N/A 7.100 mm N/A 11.000 mm N/A 29.200 mm N/A 0.600 mm N/A 6.200 mm N/A 1.600 mm N/A 3.300 mm N/A 13.100 mm N/A M6 x 1.0 – 4H5H
8LA109M N/A 8.200 mm N/A 13.000 mm N/A 33.200 mm N/A 0.800 mm N/A 8.400 mm N/A 1.600 mm N/A 3.300 mm N/A 15.500 mm N/A M8 x 1.25 – 4H5H
10LA109M N/A 9.900 mm N/A 16.000 mm N/A 41.200 mm N/A 0.800 mm N/A 10.400 mm N/A 1.600 mm N/A 3.300 mm N/A 17.300 mm N/A M10 x 1.5 – 4H5H
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