The Bell Crank, cataloged under National Stock Number 1680-00-775-5558, 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7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-00-775-5558 |
| 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 | 2.350 INCHES NOMINAL SECOND END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 1.970 INCHES NOMINAL FIRST END IN |
| End Hole/ball Diameter | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM SECOND END IN |
| End Hole/ball Diameter | 0.312 INCHES MINIMUM AND 0.314 INCHES MAXIMUM FIRST END IN |
| Bore Length | 4.855 INCHES NOMINAL IN |
| Bore Diameter | 1.312 INCHES MINIMUM AND 1.313 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 782098-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-00-775-5558 is a Bell Crank, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-00-775-5558: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 2.350 INCHES NOMINAL SECOND END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.970 INCHES NOMINAL FIRST END IN; End Hole/ball Diameter: 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM SECOND END IN; End Hole/ball Diameter: 0.312 INCHES MINIMUM AND 0.314 INCHES MAXIMUM FIRST 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 1680-00-775-5558 has DEMIL Code B. 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.