The Bell Crank, cataloged under National Stock Number 3040-00-003-1494, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-003-1494 |
| Primary Part Number | S6140-66611-005 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 3.140 INCHES MINIMUM AND 3.188 INCHES MAXIMUM FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 3.140 INCHES MINIMUM AND 3.188 INCHES MAXIMUM SECOND END IN |
| End Hole/ball Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST END IN |
| End Hole/ball Diameter | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM SECOND END IN |
| Bore Length | 0.812 INCHES MINIMUM AND 0.812 INCHES MINIMUM AND 0.817 INCHES MAXIMUM0.817 INCHES MAXIMUM IN |
| Style Designator | CLEVIS ENDS |
| Features Provided | BEARING AND BEARING AND FULCRUM BOREFULCRUM BORE |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.874 INCHES NOMINAL0.874 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| S6140-66611-005 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| S6140-66611-005 | 5/1 Secondary reference Rotair Aerospace Corp |
NSN 3040-00-003-1494 is a Bell Crank, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-003-1494 has 1 manufacturer part number on file: S6140-66611-005 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6140-66611-005: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 3.140 INCHES MINIMUM AND 3.188 INCHES MAXIMUM FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 3.140 INCHES MINIMUM AND 3.188 INCHES MAXIMUM SECOND END IN; End Hole/ball Diameter: 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST END IN; End Hole/ball Diameter: 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM SECOND END IN. 10 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.
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.