The Bell Crank, cataloged under National Stock Number 1680-00-306-3840, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-306-3840 |
| Item Name | Bell Crank |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 1.375 INCHES NOMINAL SECOND END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 0.375 INCHES NOMINAL FIRST END IN |
| End Hole/ball Diameter | 0.191 INCHES MINIMUM AND 0.198 INCHES MAXIMUM FIRST END IN |
| End Hole/ball Diameter | 0.191 INCHES MINIMUM AND 0.198 INCHES MAXIMUM SECOND END IN |
| Material Document and Classification | QQ-A-601 FED SPEC SINGLE MATERIAL RESPONSE |
| Fulcrum Bore Shape | PLAIN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 348539 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-00-306-3840 is a Bell Crank, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-00-306-3840: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.375 INCHES NOMINAL SECOND END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 0.375 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 0.191 INCHES MINIMUM AND 0.198 INCHES MAXIMUM FIRST END IN; End Hole/ball Diameter: 0.191 INCHES MINIMUM AND 0.198 INCHES MAXIMUM SECOND END IN. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-00-306-3840 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.