The Bell Crank, cataloged under National Stock Number 3040-00-758-0185, 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. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-758-0185 |
| Primary Part Number | 114C1221-6 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 4.350 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 5.660 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM FIRST END IN |
| Bore Length | 1.476 INCHES NOMINAL IN |
| Counterbore Depth | 0.215 INCHES NOMINAL IN |
| Counterbore Diameter | 0.7488 INCHES MINIMUM AND 0.7493 INCHES MAXIMUM IN |
| Bore Diameter | 0.610 INCHES NOMINAL IN |
| Material | MAGNESIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 114C1221-6 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 114C1221-6 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-00-758-0185 is a Bell Crank, manufactured by The Boeing Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-758-0185 has 1 manufacturer part number on file: 114C1221-6 (The Boeing Company).
Key specifications for 114C1221-6: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.350 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 5.660 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM FIRST END IN; Bore Length: 1.476 INCHES NOMINAL 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.
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.