The Gearshaft,helical, cataloged under National Stock Number 3040-01-494-3543, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-494-3543 |
| Primary Part Number | 7108115-3 |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP E9310 |
| Shaft Largest Diameter | 1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN |
| Shaft End Size | 0.999 INCHES AND 1.2509 INCHES IN |
| Tooth Direction | RIGHT |
| Teeth Type | SINGLE HELIX |
| Gear Outside Diameter | 1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN |
| Longer Shaft Segment Length | 6.907 INCHES MINIMUM AND 6.937 INCHES MAXIMUM IN |
| Gear Material | STEEL COMP E9310 |
| Shaft Length | 15.997 INCHES MINIMUM AND 16.047 INCHES MAXIMUM IN |
| Specification/standard Data | 81349-DOD-F-24669/1 GOVERNMENT SPECIFICATION |
| Shaft End Type | CIRCULAR GROOVED, KEYWAY WOODRUFF AND BEARING SEAT |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| 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 |
|---|---|
| 7108115-3 | Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland (USA) |
| 752-7068477-3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H832-1662-3 | 3/2 Design control — primary reference U.S. Government activity |
| 7068477 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-494-3543 is a Gearshaft,helical, manufactured by Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-494-3543 has 2 manufacturer part numbers on file: 7108115-3 (Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland), 752-7068477-3 (Naval Sea Systems Command).
Key specifications for 7108115-3: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP E9310; Shaft Largest Diameter: 1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN; Shaft End Size: 0.999 INCHES AND 1.2509 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.