The Bell Crank, cataloged under National Stock Number 3040-00-334-6121, 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 Legacy Am&m. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-334-6121 |
| Primary Part Number | 172-52068-11 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 1.500 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 2.000 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.191 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.316 INCHES NOMINAL FIRST END IN |
| Bore Length | 0.125 INCHES NOMINAL IN |
| Style Designator | FLAT-BOLT CIRCLE AROUND PIVOT HOLE |
| Bore Diameter | 0.766 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 | X |
| Part Number | Manufacturer |
|---|---|
| 172-52068-11 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 3040-00-334-6121 is a Bell Crank, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-334-6121 has 1 manufacturer part number on file: 172-52068-11 (The Boeing Company Div Legacy Am&m).
Key specifications for 172-52068-11: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 1.500 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 2.000 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.191 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.316 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.
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.