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MATERIAL:Alloy Steel - Heat treated

FINISH:450° F Alloy steel, Cadmium Plated per AMS QQ-P-416, Type II, Class 2. + Cetyl alcohol.

MARKING: Parts marked with manufacturer’s symbol (SD).

PERFORMANCE:NASM-25027 Except locking torque values applicable for 5 cycles and tensile strength per table.

THREADS:In accordance with AS 8879 before lubrication.

APPLICATION: These nuts have been designed to replace AN320 castellated nuts on critical aircraft control linkage. This design provides an increase in tensile strength while reducing weight substantially over similar parts.

Contact Howmet for the diameter/type in manufacturing.
Unit of Measure

A - MAX

 N/A 1.130 Inch

B - MIN

 N/A 1.095 Inch

C - MIN

 N/A 0.987 Inch

D - MAX

 N/A 0.785 Inch

F ±.016

 N/A 0.250 Inch

G - MAX

 N/A 0.186 Inch

G - MIN

 N/A 0.156 Inch

H ±.015

 N/A 0.375 Inch

R - MAX

 N/A 0.062 Inch

V - REF

 N/A 0.055 Inch

W - MAX

 N/A 0.880 Inch

W - MIN

 N/A 0.868 Inch

Minimum Tensile Strength

 N/A 25010 lb

Approx. Weight

 N/A 2.600 lb/100

Thread Type

 N/A Unified

Configuration 1

 N/A Castellated Hex

Lock

 N/A Crimp Lock

Simplified Material

 N/A Alloy Steel

Temperature

 N/A 450°F - 235°C

Specific Material

 N/A Alloy Steel - Heat treated

Thread

 N/A 0.7500-16 UNJF-3B

Part Family

 N/A THCR 35xx