The Shaft,shouldered, cataloged under National Stock Number 3040-01-198-0839, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-198-0839 |
| Primary Part Number | 12248072 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.1872 INCHES NOMINAL IN |
| Second End Diameter | 0.1872 INCHES NOMINAL IN |
| Largest Step Diameter | 0.225 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-763 CLASS 416 COND A COLD FINISH FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.1792 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0300 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.150 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL |
| 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 |
|---|---|
| 12248072 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 12248072 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 2248072 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 3040-01-198-0839 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-198-0839 has 2 manufacturer part numbers on file: 12248072 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 12248072 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 12248072: Surface Finish: 63.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.1872 INCHES NOMINAL IN; Second End Diameter: 0.1872 INCHES NOMINAL IN. 13 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.