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  • Nut , Castellated , Self Locking , 450°F - 180 KSI
MATERIAL: Alloy Steel - Hardness 43 HRC max.

FINISH : Cadmium Plate per AMS QQ-P-416, Type II, Class 3 (bake at 375° F for 23 hours after plating) plus cetyl alcohol lube per EN6117.

MARKING: ABS0577-ø -SD in accordance with EN 2424 – category A, on the area indicated on the drawing.

PERFORMANCE : NASM-25027 Except locking torque performance, which is to be 5 unloaded cycles at room temperature and after bake at 450°F

THREADS: In accordance with AS-8879 before lubrication.

Contact Howmet for the diameter/type in manufacturing.
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A - MAX

B - MIN

C - MIN

F - REF

G +.03 / 1

H - MAX

Thread

Part Family

N/A 0.791 Inch N/A 0.761 Inch N/A 0.703 Inch N/A 0.343 Inch N/A 0.125 Inch N/A 0.547 Inch N/A 0.5000-20 N/A DHCR 35-xx E
N/A 0.970 Inch N/A 0.940 Inch N/A 0.846 Inch N/A 0.453 Inch N/A 0.156 Inch N/A 0.672 Inch N/A 0.6250-18 N/A DHCR 35-xx E
N/A 1.252 Inch N/A 1.222 Inch N/A 1.059 Inch N/A 0.606 Inch N/A 0.156 Inch N/A 0.836 Inch N/A 0.7500-16 N/A DHCR 35-xx E
N/A 1.438 Inch N/A 1.408 Inch N/A 1.200 Inch N/A 0.665 Inch N/A 0.156 Inch N/A 0.958 Inch N/A 0.8750-14 N/A DHCR 35-xx E
N/A 1.575 Inch N/A 1.535 Inch N/A 1.344 Inch N/A 0.768 Inch N/A 0.156 Inch N/A 1.083 Inch N/A 1.0000-12 N/A DHCR 35-xx E
N/A 1.811 Inch N/A 1.772 Inch N/A 1.557 Inch N/A 0.827 Inch N/A 0.156 Inch N/A 1.205 Inch N/A 1.1250-12 N/A DHCR 35-xx E
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