The Bell Crank, cataloged under National Stock Number 3040-00-008-5375, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-008-5375 |
| Primary Part Number | A51C33500-1 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 4.765 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 5.234 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.2497 INCHES MINIMUM AND 0.2507 INCHES MAXIMUM FIRST END IN |
| End Hole/ball Diameter | 0.2497 INCHES MINIMUM AND 0.2507 INCHES MAXIMUM SECOND END IN |
| FSC Application Data | FLIGHT CONTROL SYSTEM,ACFT |
| Bore Length | 2.093 INCHES MINIMUM AND 2.103 INCHES MAXIMUM IN |
| Criticality Code Justification | ABXV AND CZLN |
| Style Designator | CLEVIS ENDS |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.7488 INCHES MINIMUM AND 0.7493 INCHES MAXIMUM 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 | Y |
| Part Number | Manufacturer |
|---|---|
| A51C33500-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51C33500-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51C33500-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-008-5375 is a Bell Crank, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-008-5375 has 1 manufacturer part number on file: A51C33500-1 (Northrop Grumman Systems Corporation).
Key specifications for A51C33500-1: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.765 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 5.234 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.2497 INCHES MINIMUM AND 0.2507 INCHES MAXIMUM FIRST END IN; End Hole/ball Diameter: 0.2497 INCHES MINIMUM AND 0.2507 INCHES MAXIMUM SECOND END IN. 11 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.