The Shaft,shouldered, cataloged under National Stock Number 3040-00-987-5045, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-987-5045 |
| Primary Part Number | 10909018 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES |
| Second End External Thread Length | 0.500 INCHES NOMINAL IN |
| Step Quantity | 16 |
| First End Diameter | 1.8910 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.9772 INCHES NOMINAL IN |
| Second End Diameter | 1.1816 INCHES NOMINAL IN |
| Largest Step Diameter | 2.000 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND SPLINED (STRAIGHT) |
| Second End Keyway Width | 0.1880 INCHES NOMINAL IN |
| First End Spline Length | 1.000 INCHES NOMINAL IN |
| First End Spline Quantity | 15 |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.182 INCHES NOMINAL IN |
| First End Groove Diameter | 1.7110 INCHES NOMINAL IN |
| Second End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| First End Spline Minor Diameter | 1.7210 INCHES NOMINAL IN |
| Material | STEEL COMP 4150 OR STEEL COMP 6150 |
| First End Groove Width | 0.0680 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 |
|---|---|
| 10909018 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2520009875045 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 3040-00-987-5045 is a Shaft,shouldered, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-987-5045 has 1 manufacturer part number on file: 10909018 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10909018: Surface Finish: 16.0 MICROINCHES; Second End External Thread Length: 0.500 INCHES NOMINAL IN; Step Quantity: 16; First End Diameter: 1.8910 INCHES NOMINAL IN. 18 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.