The Bell Crank, cataloged under National Stock Number 1680-00-050-4342, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-050-4342 |
| Primary Part Number | 369N2646 |
| Item Name | Bell Crank |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 2.300 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 4.348 INCHES NOMINAL SECOND END IN |
| FSC Application Data | FORWARD CYCLIC CONTROL |
| Bore Length | 0.030 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Counterbore Depth | 0.745 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.7488 INCHES MINIMUM AND 0.7493 INCHES MAXIMUM IN |
| Bore Diameter | 0.644 INCHES NOMINAL IN |
| Material | MAGNESIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 369A7101 | The Boeing Company (USA) |
| 369N2646 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 369A7101 | 5/9 Secondary reference Md Helicopters Inc |
| 369N2646 | 5/9 Secondary reference Md Helicopters Inc |
| 369N2646 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| 369A7101 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 1680-00-050-4342 is a Bell Crank, manufactured by The Boeing Company, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-050-4342 has 2 manufacturer part numbers on file: 369A7101 (The Boeing Company), 369N2646 (The Boeing Company).
Key specifications for 369N2646: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 2.300 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.348 INCHES NOMINAL SECOND END IN; FSC Application Data: FORWARD CYCLIC CONTROL; Bore Length: 0.030 INCHES MINIMUM AND 0.045 INCHES MAXIMUM 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 1680-00-050-4342 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.