The Shaft,shouldered, cataloged under National Stock Number 3040-00-756-1535, 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. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-756-1535 |
| Primary Part Number | 7073779 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.2470 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| First End Step Length | 0.300 INCHES NOMINAL IN |
| Second End Diameter | 0.1872 INCHES NOMINAL IN |
| Second End Step Length | 0.700 INCHES NOMINAL IN |
| Largest Step Diameter | 0.380 INCHES NOMINAL IN |
| First End Angle Between Flats | 90.0 DEGREES NOMINAL |
| First End Style | TWO FLATS |
| Second End Angle Between Flats | 90.0 DEGREES NOMINAL |
| End Similarity | NOT IDENTICAL |
| Second End Style | TWO FLATS |
| 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 |
|---|---|
| 7073779 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 7073779P1 | 5/9 Secondary reference General Electric Company |
NSN 3040-00-756-1535 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-756-1535 has 1 manufacturer part number on file: 7073779 (Lockheed Martin Corporation Div Rms).
Key specifications for 7073779: Surface Finish: 32.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.2470 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; First End Step Length: 0.300 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.