bolts › close tolerance bolts
AN174-26A
Aeronautical Standard Close Tolerance Bolt
Description
Close Tolerance Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Fastener Length | 2.781 in |
| Grip | 2 5/16 in |
| Head Height | Between 0.140 in and 0.172 in |
| Head Type | Hexagon |
| Industry Standards/Certification | AN174 |
| Length | 2 25/32 in, 2 3/4 |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-180-2760 |
| NSN | 5306-00-180-2760 |
| Thread Class | 3a |
| Thread Length | 0.469 in |
| Thread Size | 0.2500-28 |
| Weight | 0.04 lb |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error