The Shaft,axle,automotive, cataloged under National Stock Number 2520-00-752-1730, 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 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-752-1730 |
| Primary Part Number | 7521730 |
| 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 | 8 UNTHREADED HOLE(S) |
| Second End Type | SPLINED |
| First End Type | FLANGED |
| Second End Spline Quantity | 16 |
| Second End Spline Minor Diameter | 1.489 INCHES MINIMUM AND 1.501 INCHES MAXIMUM IN |
| Second End Bearing Seat | NOT INCLUDED |
| Flange Thickness at Mounting Hole | 0.500 INCHES NOMINAL IN |
| Second End Spline Major Diameter | 1.622 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-633, FS1046-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Flange Overall Thickness | 1.813 INCHES NOMINAL IN |
| Second End Spline Type | STRAIGHT |
| Material | STEEL COMP 1046 |
| Flange Outside Diameter | 6.427 INCHES MINIMUM AND 6.447 INCHES MAXIMUM IN |
| First End Bearing Seat | NOT INCLUDED |
| Hole Diameter | 0.504 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN |
| Second End Spline Length | 1.375 INCHES NOMINAL 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 |
|---|---|
| 7521730 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 1401D4 | 5/9 Secondary reference Spalla Inc |
| 3203-Q-2513 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| 3202Q2513 | 5/9 Secondary reference Kaitlin Corp |
| 2520007521730 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 2520-00-752-1730 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 2520-00-752-1730 has 1 manufacturer part number on file: 7521730 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7521730: Mounting Facility Type and Quantity: 8 UNTHREADED HOLE(S); Second End Type: SPLINED; First End Type: FLANGED; Second End Spline Quantity: 16. 16 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.