The Shaft,shouldered, cataloged under National Stock Number 3040-01-377-4003, 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 15 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-377-4003 |
| Primary Part Number | 5830644 |
| 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 |
| First End Tongue Thickness | 0.248 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| First End Tongue Width | 0.5000 INCHES NOMINAL IN |
| First End Step Length | 0.8750 INCHES NOMINAL IN |
| Second End Diameter | 1.2180 INCHES NOMINAL IN |
| Largest Step Diameter | 1.2180 INCHES NOMINAL IN |
| First End Style | TONGUE ROUNDED ENDS |
| Second End Groove Diameter | 1.2495 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.0200 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.1870 INCHES NOMINAL IN |
| Second End Style | TWO CIRCULAR GROOVES |
| Material | STEEL CORROSION RESISTING |
| Second End Distance Between First and Second Groove Centers | 0.1870 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 |
|---|---|
| 5830644 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3040-01-377-4003 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 3040-01-377-4003 has 1 manufacturer part number on file: 5830644 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 2915-01-592-3476. Verify interchangeability with system specifications before substitution.
Key specifications for 5830644: First End Tongue Thickness: 0.248 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.5000 INCHES NOMINAL IN; First End Tongue Width: 0.5000 INCHES NOMINAL IN. 15 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.