The Shaft,straight, cataloged under National Stock Number 3040-00-752-1385, 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 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-752-1385 |
| Primary Part Number | 7521385 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Second End Grooved Flat Length | 0.5050 INCHES NOMINAL IN |
| Surface Finish | 32.0 MICROINCHES |
| First End Tongue Thickness | 0.547 INCHES NOMINAL IN |
| First End Diameter | 0.9950 INCHES NOMINAL IN |
| First End Tongue Width | 0.984 INCHES NOMINAL IN |
| First End Step Length | 1.187 INCHES NOMINAL IN |
| Second End Distance From End to Flat | 0.730 INCHES NOMINAL IN |
| Second End Diameter | 0.9950 INCHES NOMINAL IN |
| First End Style | TONGUE |
| Material Document and Classification | QQ-S-624,COMP 4620H FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Grooved Flat Depth | 0.045 INCHES NOMINAL IN |
| Second End Style | FLAT GROOVED |
| Material | STEEL |
| 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 |
|---|---|
| 7521385 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 913634 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 673T5 | 5/9 Secondary reference Diamond Reo Truck Co |
| 2843K219 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| 801E363 | 5/9 Secondary reference Kersey / American Lafrance a Div of Figgie International Inc |
| 3040007521385 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 3040-00-752-1385 is a Shaft,straight, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-752-1385 has 1 manufacturer part number on file: 7521385 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7521385: Second End Grooved Flat Length: 0.5050 INCHES NOMINAL IN; Surface Finish: 32.0 MICROINCHES; First End Tongue Thickness: 0.547 INCHES NOMINAL IN; First End Diameter: 0.9950 INCHES NOMINAL 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.