The Bell Crank, cataloged under National Stock Number 3040-00-004-4887, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-004-4887 |
| Primary Part Number | A51C34501-3 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Bore Length | 1.625 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN |
| Criticality Code Justification | ABXV |
| Features Provided | BEARING |
| Bore Diameter | 0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Material | TITANIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| A51C34501-3 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| A51C34501-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51C34501-3 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51C34501-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51C34501-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51C34501-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-004-4887 is a Bell Crank, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-004-4887 has 2 manufacturer part numbers on file: A51C34501-3 (Northrop Grumman Systems Corporation), A51C34501-1 (Northrop Grumman Systems Corporation).
Key specifications for A51C34501-3: Bore Length: 1.625 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN; Criticality Code Justification: ABXV; Features Provided: BEARING; Bore Diameter: 0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. 5 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.