The Bell Crank, cataloged under National Stock Number 3040-01-472-8484, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-472-8484 |
| Primary Part Number | 563-6404331 FIND 47 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 2.000 INCHES NOMINAL ALL ENDS IN |
| End Hole/ball Diameter | 8.750 INCHES NOMINAL ALL ENDS IN |
| Bore Length | 3.880 INCHES NOMINAL IN |
| Style Designator | CLEVIS ENDS |
| Fulcrum Bore Shape | PLAIN |
| Bore Diameter | 2.1257 INCHES NOMINAL IN |
| Material | COPPER ALLOY AND NICKEL 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 |
|---|---|
| DF6002.416 #46 | Naval Sea Systems Command (USA) |
| 563-6404331 FIND 47 PRIMARY | Naval Sea Systems Command (USA) |
| 563-6404331-47 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF6002-416 | D/9 Drawing number reference only Naval Sea Systems Command |
| 211045042 | 5/2 Secondary reference U.S. Government activity |
| 563-6404331 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-472-8484 is a Bell Crank, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-472-8484 has 3 manufacturer part numbers on file: DF6002.416 #46 (Naval Sea Systems Command), 563-6404331 FIND 47 (Naval Sea Systems Command), 563-6404331-47 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-472-8531. Verify interchangeability with system specifications before substitution.
Key specifications for 563-6404331 FIND 47: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 2.000 INCHES NOMINAL ALL ENDS IN; End Hole/ball Diameter: 8.750 INCHES NOMINAL ALL ENDS IN; Bore Length: 3.880 INCHES NOMINAL IN; Style Designator: CLEVIS ENDS. 7 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.