(5) Aeronautical Standards Group AN3DDH5A Aluminum Machine Bolt NSN:5306-00-559-8134

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Machine Bolt

NSN: 5306-00-559-8134 | Model: AN3DDH5A
ITAR Registered seal

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Thread Class
Thread Direction
Thread Length
Between 0.375 inches and 0.453 inches
Fastener Length
Between 0.641 inches and 0.688 inches
Head Style
Head Height
Between 0.109 inches and 0.141 inches
Width Between Flats
Between 0.365 inches and 0.377 inches
Hole Diameter
0.046 inches
Thread Diameter
0.190 inches
Grip Length
Between 0.234 inches and 0.266 inches
Hole Quantity
Hole Type
Features Provided
Finished head
Thready Qty Per Inch (tpi)
Min. Tensile Strength (psi)
62000 pounds per square inch
Hole Configuration Style
Hexagon flats
Aluminum alloy
Material Specification
Qq-a-200 federal specification single material response or qq-a-225 federal specification single material response or qq-a-430 federal specification single material response
Surface Treatment
Oxide film and anodize
Surface Treatment Specification
Mil-c-5541 military specification 1st treatment response and mil-a-8625 military specification 2nd treatment response
Thread Series Designator

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