The Shaft,shouldered, cataloged under National Stock Number 3040-01-412-1127, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-412-1127 |
| Primary Part Number | 12364780 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 0.9843 INCHES NOMINAL IN |
| Second End Diameter | 1.4549 INCHES NOMINAL IN |
| Largest Step Diameter | 1.500 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 1.3536 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Spline Major Diameter | 1.4549 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 1.3740 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 34 |
| Second End Groove Width | 0.0560 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.1740 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED, SPLINED (STRAIGHT) AND EXTERNALLY THREADED |
| Material | STEEL COMP 1045 |
| Second End Internal Thread Length | 0.250 INCHES NOMINAL IN |
| Second End Spline Length | 1.750 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-01-412-1127 is a Shaft,shouldered, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-412-1127 has 2 manufacturer part numbers on file: 12364780 (Bae Systems Land & Armaments L.p.), 12364780 (Amz Alabama Inc.).
Key specifications for 12364780: Surface Finish: 125.0 MICROINCHES; Step Quantity: 5; First End Diameter: 0.9843 INCHES NOMINAL IN; Second End Diameter: 1.4549 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.
NSN 3040-01-412-1127 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.