The Bell Crank, cataloged under National Stock Number 3040-00-179-5705, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 10 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 | 3040-00-179-5705 |
| Primary Part Number | 10871495 |
| Item Name | Bell Crank |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 4.750 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 15.500 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.641 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.498 INCHES MINIMUM AND 0.501 INCHES MAXIMUM FIRST END IN |
| Bore Length | 2.218 INCHES MINIMUM AND 2.234 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-I-666 GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE |
| Features Provided | FULCRUM SPLIT HUB |
| Surface Treatment | PAINT |
| Bore Diameter | 1.373 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| Material | IRON |
| 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 |
|---|---|
| 10871495 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-00-179-5705 is a Bell Crank, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-179-5705 has 1 manufacturer part number on file: 10871495 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10871495: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.750 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 15.500 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.641 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.498 INCHES MINIMUM AND 0.501 INCHES MAXIMUM FIRST END IN. 10 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.