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:
1100Mpa / 235°C.THREAD:
TOLERANCES OF FORM AND POSITION:
- PROFILE: ISO M in accordance with NFL 05220.
- TOLERANCES: in accordance with NFL 05224.
In accordance with ISO 8788.MARKING:
+ SD in accordance with NFL 22036 on the area indicated on the drawing.QUALIFICATION AND ACCEPTANCE CONDITIONS:
LN 65016 except axial tensile strength.OPTIONS :
- Countersunk rivet holes as indicated on the drawing. Add code K after the reference (ex.: 5SF 5009MK).
- Metal cap: Add code B after the type of the nut (example: 5SFB 5009M).
Contact Alcoa for the diameter/type in manufacturing.