The Shaft,shouldered, cataloged under National Stock Number 3040-01-506-5790, 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 Dba Northrop Grumman Systems Corp. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-506-5790 |
| Primary Part Number | 6394966-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES |
| First End Width Across Flats | 1.160 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN |
| Step Quantity | 6 |
| First End Diameter | 1.4972 INCHES MINIMUM AND 1.4988 INCHES MAXIMUM IN |
| First End Step Length | 0.936 INCHES NOMINAL IN |
| Largest Step Diameter | 2.500 INCHES NOMINAL IN |
| First End Style | SQUARE (ROUND CORNERS) |
| Material Document and Classification | QQ-N-286 FORM:1 CONDITION:ANNEALED FED STD SINGLE MATERIAL RESPONSE |
| End Similarity | IDENTICAL |
| Material | NICKEL ALLOY K-500 |
| 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 |
|---|---|
| 6394966-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 6394775 FIND 3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6394966 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-506-5790 is a Shaft,shouldered, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-506-5790 has 2 manufacturer part numbers on file: 6394966-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 6394775 FIND 3 (Naval Sea Systems Command).
Key specifications for 6394966-1: Surface Finish: 16.0 MICROINCHES; First End Width Across Flats: 1.160 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN; Step Quantity: 6; First End Diameter: 1.4972 INCHES MINIMUM AND 1.4988 INCHES MAXIMUM IN. 10 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.