The Bell Crank, cataloged under National Stock Number 1680-00-700-3789, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-700-3789 |
| Primary Part Number | S6140-61415-041 |
| Item Name | Bell Crank |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Bore Length | 0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE AND PAINT |
| Bore Diameter | 0.748 INCHES MINIMUM AND 0.749 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 |
| Part Number | Manufacturer |
|---|---|
| S6140-61415 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| S6140-61415-041 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 1680-00-700-3789 is a Bell Crank, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-700-3789 has 2 manufacturer part numbers on file: S6140-61415 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), S6140-61415-041 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6140-61415-041: Bore Length: 0.750 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN; Surface Treatment: ANODIZE AND PAINT; Bore Diameter: 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN; Material: ALUMINUM ALLOY. 4 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 1680-00-700-3789 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.