The Shaft,shouldered, cataloged under National Stock Number 3040-00-243-4431, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-243-4431 |
| Primary Part Number | 1128AMM40411-11 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 4 |
| First End Diameter | 0.9800 INCHES NOMINAL IN |
| Second End Diameter | 0.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 0.980 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.125 INCHES NOMINAL IN |
| First End Groove Diameter | 0.4920 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL |
| First End Groove Width | 0.0940 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 |
| Part Number | Manufacturer |
|---|---|
| 1128AMM40411-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128AMM40411 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 1128AMM40411-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-243-4431 is a Shaft,shouldered, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-243-4431 has 1 manufacturer part number on file: 1128AMM40411-11 (Northrop Grumman Systems Corporation).
Key specifications for 1128AMM40411-11: Surface Finish: 125.0 MICROINCHES; Step Quantity: 4; First End Diameter: 0.9800 INCHES NOMINAL IN; Second End Diameter: 0.3750 INCHES NOMINAL IN. 12 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 3040-00-243-4431 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.