The Gearshaft,spur, cataloged under National Stock Number 3040-01-447-2018, 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 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-447-2018 |
| Primary Part Number | 123-4403527 PART 14 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | NICKEL ALLOY |
| Shaft Largest Diameter | 1.500 INCHES NOMINAL IN |
| Shaft End Size | 1.000 INCHES AND 1.500 INCHES IN |
| Teeth Quantity | 15 |
| Diametral Pitch | 5 |
| Gear Outside Diameter | 3.400 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 2.721 INCHES NOMINAL IN |
| Gear Material | NICKEL ALLOY |
| Shaft End Type | PLAIN AND SQUARE |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 1.062 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 |
|---|---|
| 123-4403525 PART 26 | Naval Sea Systems Command (USA) |
| 123-4403527 PART 14 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 4403525 | D/9 Drawing number reference only Naval Sea Systems Command |
| H600-1502-69 PART 26 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 4403527 | D/9 Drawing number reference only Naval Sea Systems Command |
| H600-1502-71 PART 14 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3040-01-447-2018 is a Gearshaft,spur, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-447-2018 has 2 manufacturer part numbers on file: 123-4403525 PART 26 (Naval Sea Systems Command), 123-4403527 PART 14 (Naval Sea Systems Command).
Key specifications for 123-4403527 PART 14: Shaft Type: SHOULDERED; Shaft Material: NICKEL ALLOY; Shaft Largest Diameter: 1.500 INCHES NOMINAL IN; Shaft End Size: 1.000 INCHES AND 1.500 INCHES 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.