The Shaft,shouldered, cataloged under National Stock Number 3040-01-296-6903, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-296-6903 |
| Primary Part Number | 5497629-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| First End Pitch Diameter | 1.6875 INCHES NOMINAL IN |
| Step Quantity | 6 |
| First End Diameter | 1.7388 INCHES NOMINAL IN |
| First End Spline Major Diameter | 1.7388 INCHES NOMINAL IN |
| Second End Diameter | 1.8656 INCHES NOMINAL IN |
| Largest Step Diameter | 2.250 INCHES NOMINAL IN |
| Second End Spline Minor Diameter | 1.7335 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Spline Major Diameter | 1.8656 INCHES NOMINAL IN |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 2.0000 INCHES NOMINAL IN |
| First End Spline Quantity | 27 |
| End Similarity | NOT IDENTICAL |
| Second End Spline Quantity | 29 |
| Second End Pressure Angle | 30.0 DEGREES NOMINAL |
| Second End Style | SPLINED (INVOLUTE) |
| First End Spline Minor Diameter | 1.6085 INCHES NOMINAL IN |
| Material | STEEL COMP 17-4PH |
| Second End Pitch Diameter | 1.8125 INCHES NOMINAL IN |
| Second End Spline Length | 2.0620 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5497629-1 PRIMARY | Naval Sea Systems Command (USA) |
| 5497629-2 | Lockheed Martin Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 5497629 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5497629-1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 3040-01-296-6903 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-296-6903 has 2 manufacturer part numbers on file: 5497629-1 (Naval Sea Systems Command), 5497629-2 (Lockheed Martin Uk Ltd).
Key specifications for 5497629-1: First End Pitch Diameter: 1.6875 INCHES NOMINAL IN; Step Quantity: 6; First End Diameter: 1.7388 INCHES NOMINAL IN; First End Spline Major Diameter: 1.7388 INCHES NOMINAL IN. 20 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.
NSN 3040-01-296-6903 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.