The Shaft,shouldered, cataloged under National Stock Number 3040-01-311-0109, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-311-0109 |
| Primary Part Number | 12358399 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Step Quantity | 6 |
| First End Diameter | 0.4700 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Second End Diameter | 1.1810 INCHES MINIMUM AND 1.1814 INCHES MAXIMUM IN |
| Largest Step Diameter | 1.400 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 0.5650 INCHES MINIMUM AND 0.5700 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Second End Spline Major Diameter | 0.7570 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 10 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| Material | STEEL COMP 4140 |
| Second End Pitch Diameter | 0.0982 INCHES MINIMUM AND 0.1008 INCHES MAXIMUM IN |
| Second End Spline Length | 0.6300 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 |
|---|---|
| 12358399 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 10196511 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 3040-01-311-0109 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 3040-01-311-0109 has 1 manufacturer part number on file: 12358399 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12358399: Step Quantity: 6; First End Diameter: 0.4700 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN; Second End Diameter: 1.1810 INCHES MINIMUM AND 1.1814 INCHES MAXIMUM IN; Largest Step Diameter: 1.400 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.