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AN4-30
Aeronautical Standard Machine Bolt
Description
Airframe Bolt; Drilled
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Drilled Head |
| Fastener Length | Between 3.016 inches and 3.062 inches |
| Grip | 2 9/16 in |
| Grip Length | 2 9/16, Between 2.546 inches and 2.578 inches |
| Head Height | Between 0.140 inches and 0.172 inches |
| Head Style | Hexagon Head |
| Head Type | Hexagon |
| Industry Standards/Certification | AN4 |
| Length | 3 1/32 in |
| Material | Steel |
| NIIN | 01-364-7685 |
| NSN | 5306-01-364-7685 |
| Nominal Length | 3 1/32 |
| Specification Data | 88044-an4-30 government specification |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.469 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4-28 |
| Weight | 0.045 lb |
| Width Between Flats | Between 0.426 inches and 0.440 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN4-30. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error