The Shaft,straight, cataloged under National Stock Number 3040-01-352-0023, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-352-0023 |
| Primary Part Number | 12380454 |
| 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 | 0.2100 INCHES NOMINAL IN |
| Surface Finish | 125.0 MICROINCHES |
| Second End Flat Length | 0.5000 INCHES NOMINAL IN |
| First End Diameter | 0.3750 INCHES NOMINAL IN |
| Second End Distance From End to Flat | 0.6700 INCHES NOMINAL IN |
| Second End Diameter | 0.3750 INCHES NOMINAL IN |
| First End External Thread Length | 0.5000 INCHES NOMINAL IN |
| First End Distance From End to Flat | 0.5000 INCHES NOMINAL IN |
| First End Style | FLAT GROOVED AND EXTERNALLY THREADED |
| First End Grooved Flat Depth | 0.0650 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| First End Grooved Flat Length | 0.0780 INCHES NOMINAL IN |
| Second End Grooved Flat Depth | 0.1900 INCHES NOMINAL IN |
| Second End Style | FLAT GROOVED AND FLATTED |
| Material | STEEL CORROSION RESISTING |
| Second End Flat Depth | 0.2500 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 |
|---|---|
| 12380454 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12380454 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-352-0023 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 3040-01-352-0023 has 1 manufacturer part number on file: 12380454 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12380454: Second End Grooved Flat Length: 0.2100 INCHES NOMINAL IN; Surface Finish: 125.0 MICROINCHES; Second End Flat Length: 0.5000 INCHES NOMINAL IN; First End Diameter: 0.3750 INCHES NOMINAL IN. 17 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.