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AN5-42A
Aeronautical Standard Machine Bolt
Description
Airframe Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Fastener Length | 4.328 inches minimum and 4.375 inches maximum |
| Features Provided | Finished head |
| Grip | 3 13/16 in |
| Grip Length | 3 13/16, 3.797 inches minimum and 3.828 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.172 inches minimum and 0.204 inches maximum |
| Head Style | Hexagon Head |
| Industry Standards/Certification | AN5 |
| Length | 4 11/32 in, 4 3/8 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-6050 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6758 mil spec 5th material response or ams 6300 assn std 6th material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-150-9231 |
| NSN | 5306-00-150-9231 |
| Nominal Length | 4 11/32 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,type2,class3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.500 inches minimum and 0.578 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 1/4, 5/16-24 |
| Weight | 0.1 lb |
| Width Between Flats | 0.490 inches minimum and 0.502 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN5-42A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error