The Gearshaft,spur, cataloged under National Stock Number 3040-01-466-8434, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-466-8434 |
| Primary Part Number | 12375324 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 4140 OR STEEL COMP 4340 |
| Shaft Largest Diameter | 0.900 INCHES NOMINAL IN |
| Shaft End Size | 0.6693 INCHES AND 0.6247 INCHES IN |
| Teeth Quantity | 33 |
| Diametral Pitch | 20 |
| Gear Outside Diameter | 1.750 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 3.626 INCHES NOMINAL IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Gear Material | STEEL COMP 4140 OR STEEL COMP 4340 |
| Shaft End Type | CIRCULAR GROOVED AND PLAIN |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 2.250 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 |
|---|---|
| 12375324 PRIMARY | General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 12375324 | 5/9 Secondary reference General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| 12375324 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 3040-01-466-8434 is a Gearshaft,spur, manufactured by General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-466-8434 has 1 manufacturer part number on file: 12375324 (General Dynamics Land Systems Customer Service & Support Company Div General Dynamics Land Systems Inc).
Key specifications for 12375324: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 4140 OR STEEL COMP 4340; Shaft Largest Diameter: 0.900 INCHES NOMINAL IN; Shaft End Size: 0.6693 INCHES AND 0.6247 INCHES IN. 14 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.