The Shaft,shouldered, cataloged under National Stock Number 3040-01-077-2878, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-077-2878 |
| Primary Part Number | 3224137 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End External Thread Length | 2.750 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 2.2500 INCHES NOMINAL IN |
| Second End Diameter | 2.4370 INCHES NOMINAL IN |
| Largest Step Diameter | 2.495 INCHES NOMINAL IN |
| First End External Thread Length | 1.750 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material Document and Classification | QQ-N-281,CL A,COLD DRAWN,STRESS EQUALIZED,FORM 1 FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 2.3120 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 1.750 INCHES NOMINAL IN |
| Second End Groove Width | 0.1250 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 2.625 INCHES NOMINAL IN |
| First End Groove Diameter | 2.1250 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | COPPER ALLOY |
| First End Groove Width | 0.1250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 3224040 ITEM 13 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3224042 ITEM 13 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3224137 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3040-01-077-2878 is a Shaft,shouldered, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-077-2878 has 3 manufacturer part numbers on file: 3224040 ITEM 13 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3224042 ITEM 13 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3224137 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 3224137: Surface Finish: 63.0 MICROINCHES; Second End External Thread Length: 2.750 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 2.2500 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.
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.