The Bell Crank, cataloged under National Stock Number 3040-01-140-3683, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-140-3683 |
| Primary Part Number | 74A425006-1001 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 3.361 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 5.084 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.375 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.375 INCHES NOMINAL FIRST END IN |
| Bore Length | 2.990 INCHES NOMINAL IN |
| Style Designator | CLEVIS ENDS |
| Bore Diameter | 0.938 INCHES NOMINAL IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 74A425006-1001 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 74A425006-1001 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10106915 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 3040-01-140-3683 is a Bell Crank, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-140-3683 has 2 manufacturer part numbers on file: 74A425006-1001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 74A425006-1001 (The Boeing Company Div Defense).
Key specifications for 74A425006-1001: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 3.361 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 5.084 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.375 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.375 INCHES NOMINAL FIRST END IN. 8 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 3040-01-140-3683 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.