The Shaft,axle,automotive, cataloged under National Stock Number 2520-01-474-3901, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-01-474-3901 |
| Primary Part Number | EX4855-2 |
| Item Name | Shaft,axle,automotive |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 6 UNTHREADED HOLE(S) |
| Second End Type | SPLINED |
| First End Type | FLANGED |
| Second End Spline Minor Diameter | 1.282 INCHES NOMINAL IN |
| Flange Thickness at Mounting Hole | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Second End Gear Teeth Pressure Angle in Deg | 45.0 |
| Second End Spline Major Diameter | 1.375 INCHES NOMINAL IN |
| Second End Spline Pressure Angle in Deg | 45.0 |
| Second End Gear Teeth Quantity | 32 |
| First End Spline Length | 3.210 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN |
| Flange Overall Thickness | 0.303 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN |
| Second End Spline Type | INVOLUTE |
| Second End Gear Outside Diameter | 1.375 INCHES NOMINAL IN |
| Flange Outside Diameter | 2.948 INCHES MINIMUM AND 2.952 INCHES MAXIMUM IN |
| Second End Pitch Diameter | 0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hole Diameter | 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Second End Spline Length | 3.210 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EX4855-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 10068552 PRIMARY | Gkn Driveline North America, Inc. (USA) |
| 12460369-5 PRIMARY | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 299-0070 | 5/9 Secondary reference Gkn Driveline North America, Inc. |
| EX4855 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 2520PL0839479 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 456720023102 | 6/9 Informative reference only Ncb Hungary (honvedsegi Egyseges Termekkod) |
| EX4855-2 | 5/9 Secondary reference Am General Llc |
| EX4855-2 | 5/9 Secondary reference Gkn Driveline North America, Inc. |
NSN 2520-01-474-3901 is a Shaft,axle,automotive, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-474-3901 has 3 manufacturer part numbers on file: EX4855-2 (U S Army Tank Automotive Command Amsta-Im-Mm), 10068552 (Gkn Driveline North America, Inc.), 12460369-5 (Am General Llc).
Key specifications for EX4855-2: Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S); Second End Type: SPLINED; First End Type: FLANGED; Second End Spline Minor Diameter: 1.282 INCHES NOMINAL IN. 17 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.