The Bell Crank, cataloged under National Stock Number 3040-00-411-8308, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-411-8308 |
| Primary Part Number | 10870301 |
| 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 | 4.000 INCHES NOMINAL FIRST END IN |
| Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball | 4.750 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.500 INCHES NOMINAL SECOND END IN |
| End Hole/ball Diameter | 0.500 INCHES NOMINAL FIRST END IN |
| Bore Length | 1.500 INCHES NOMINAL IN |
| Style Designator | CLEVIS ENDS |
| Surface Treatment | PHOSPHATE |
| Slot Width | 0.628 INCHES NOMINAL FIRST END IN |
| Slot Width | 0.628 INCHES NOMINAL SECOND END IN |
| Bore Diameter | 0.9395 INCHES NOMINAL IN |
| 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 |
|---|---|
| 10870301 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2520004118308 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 2520004118308 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3040-00-411-8308 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 3040-00-411-8308 has 1 manufacturer part number on file: 10870301 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10870301: Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.000 INCHES NOMINAL FIRST END IN; Center to Center Distance Between Fulcrum and Arm End Hole/slot/ball: 4.750 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.500 INCHES NOMINAL SECOND END IN; End Hole/ball Diameter: 0.500 INCHES NOMINAL 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.