Aeronautical Standards Group - Bolt - AN3-3A
Standard Part
Description: Bolt
Part Number: AN3-3A
Item Description
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 nominal 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.
Features and Characteristics
| Thread Class | 3a | |
| Thread Direction | Right-hand | |
| Thread Length | 0.406 inches | |
| Fastener Length | Between 0.453 inches and 0.500 inches | |
| Head Style | Dished hexagon | |
| Head Height | Between 0.109 inches and 0.141 inches | |
| Width Between Flats | Between 0.365 inches and 0.377 inches | |
| Thread Diameter | 0.190 inches | |
| Grip Length | Between 0.047 inches and 0.078 inches | |
| Features Provided | Casehardened and finished head | |
| Thready Qty Per Inch (tpi) | 32 | |
| Min. Tensile Strength (psi) | 125000 pounds per square inch | |
| Hardness Rating | 26.0 rockwell c and 32.0 rockwell c | |
| Minimum Yield Strength | 1690 pounds per square inch | |
| Special Features | Mark non-corrosion resistant steel bolts with x on top of head | |
| Material | Steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 | |
| Material Specification | Mil-s-6758 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-6049 military specification 4th material response | |
| Surface Treatment | Cadmium | |
| Surface Treatment Specification | Qq-p-416, type 1, cl 3 federal specification single treatment response | |
| Test Data Document | 88044-an3-3a specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.). | |
| Thread Series Designator | Unf | |
| FSC | 5306 Bolts | |
| NIIN | 001509221 | |
| NSN | 5306001509221 |
Notes
Acceptable Alternate MS27039-1-07 Applicable to (C650) for next Higher Assemblies 4919289-1, 4919290-1, 4919396-1 and 4919397-1. Acceptable alternate NAS1351-3-8 applicable to (C182) for next Higher Assemblies 0713377-4 and 071377-5.