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Airframe Bolt, Drilled AN4-55

Description:

Length: 5-21/32", grip: 5-3/16", thread: 1/4-28, cadmium plated steel, drilled shank

AN4-55 Details

National Stock Number (NSN) 5306-00-260-7608
Alternate Part Number N/A
Federal Supply Class (FSC) 5306
Unit of Measure (UOM) 1 /Ea.
Thread Class 3a
Thread Direction Right-hand
Thread Length Between 0.515 inches and 0.562 inches
Eye Inside Diameter Between 0.313 inches and 0.316 inches
Shoulder Thickness 0.094 inches
Shank Length Between 0.703 inches and 0.750 inches
Eye Stock Thickness Between 0.183 inches and 0.193 inches
Shoulder Diameter 0.688 inches
Shank Unthreaded Hole Diameter 0.066 inches first hole and 0.086 inches first hole
Overall Length 1.704 inches
Thread Diameter 0.312 inches
Thready Qty Per Inch (tpi) 24
Min. Tensile Strength (psi) 12500 pounds per square inch
Hardness Rating 26.0 rockwell c and 32.0 rockwell c
Distance From Center Of Eye To Shank End 1.360 inches
Distance From Threaded End To Shank Hole Center 0.531 inches first hole and 0.562 inches first hole
Eye Outside Width 0.688 inches
Material Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037
Material Specification Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6050 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6758 military specification 5th material response or ams 6300 assn standard 6th material response
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 type 2 cl 3 federal specification single treatment response
Style Designator Round, closed w/shoulder
Thread Series Designator Unf

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