The Gearshaft,spur, cataloged under National Stock Number 3040-00-855-5791, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-855-5791 |
| Primary Part Number | 8357189 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 8620 |
| Shaft Largest Diameter | 6.498 INCHES NOMINAL IN |
| Shaft End Size | 4.250 INCHES AND 6.498 INCHES IN |
| Teeth Quantity | 15 |
| Gear Material | STEEL COMP 8620 |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| 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 |
|---|---|
| 8357189 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2520008555791 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 3040-00-855-5791 is a Gearshaft,spur, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-855-5791 has 1 manufacturer part number on file: 8357189 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8357189: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 8620; Shaft Largest Diameter: 6.498 INCHES NOMINAL IN; Shaft End Size: 4.250 INCHES AND 6.498 INCHES IN. 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.