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AN8-25A
Aeronautical Standard Machine Bolt
Description
Airframe Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Fastener Length | 2.703 inches minimum and 2.750 inches maximum |
| Grip | 1 15/16 in |
| Grip Length | 1 15/16, 1.922 inches minimum and 1.953 inches maximum |
| Head Height | 0.265 inches minimum and 0.297 inches maximum |
| Head Style | Hexagon Head |
| Head Type | Hexagon |
| Industry Standards/Certification | AN8 |
| Length | 2 23/32 in, 2 3/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 01-371-2849 |
| NSN | 5306-01-371-2849 |
| Nominal Length | 2 23/32 |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 0.775 |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNF |
| Thread Size | 1/2-20 |
| Weight | 0.181 lb |
| Width Between Flats | 0.740 inches minimum and 0.752 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN8-25A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error