The Gearshaft,helical, cataloged under National Stock Number 3040-01-449-1735, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 15 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 | 3040-01-449-1735 |
| Primary Part Number | 2D1-03960 |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 4340 |
| Helix Angle | 15.0000 DEGREES |
| Shaft Largest Diameter | 2.750 INCHES NOMINAL IN |
| Shaft End Size | 2.370 INCHES AND 2.500 INCHES IN |
| Teeth Quantity | 32 |
| Tooth Direction | RIGHT |
| Teeth Type | SINGLE HELIX |
| Gear Outside Diameter | 5.855 INCHES NOMINAL IN |
| Hardness Rating | 310.0 BRINELL HULTGREN MINIMUM AND 330.0 BRINELL HULTGREN MAXIMUM OVERALL |
| Gear Material | STEEL COMP 4340 |
| Shaft End Type | KEYWAY FLAT |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 3.250 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 |
|---|---|
| 2E3-00294 | Lake Shore Systems, Inc. (USA) |
| 2D1-03960 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 2E3-00294 IT NO 1 | Lake Shore Systems, Inc. (USA) |
NSN 3040-01-449-1735 is a Gearshaft,helical, manufactured by Lake Shore Systems, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-449-1735 has 3 manufacturer part numbers on file: 2E3-00294 (Lake Shore Systems, Inc.), 2D1-03960 (Lake Shore Systems, Inc.), 2E3-00294 IT NO 1 (Lake Shore Systems, Inc.).
Key specifications for 2D1-03960: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 4340; Helix Angle: 15.0000 DEGREES; Shaft Largest Diameter: 2.750 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.