The Shaft,shouldered, cataloged under National Stock Number 3040-01-407-6061, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-407-6061 |
| Primary Part Number | 7D3-05007 PC 3 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Second End External Thread Length | 1.1800 INCHES NOMINAL IN |
| Step Quantity | 6 |
| First End Diameter | 0.9740 INCHES NOMINAL IN |
| Second End Diameter | 1.0000 INCHES NOMINAL IN |
| Largest Step Diameter | 1.5000 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Groove Diameter | 0.8100 INCHES NOMINAL IN |
| First End Keyway Depth | 0.1250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.3800 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 1.1800 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| Material | STEEL |
| External Keyway Length | 1.4400 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.2500 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 |
|---|---|
| 7D3-05007 PC 3 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 7B1-06297 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7D3-05007 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 3040-01-407-6061 is a Shaft,shouldered, manufactured by Lake Shore Systems, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-407-6061 has 2 manufacturer part numbers on file: 7D3-05007 PC 3 (Lake Shore Systems, Inc.), 7B1-06297 (Lake Shore Systems, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-407-6065, 3950-01-407-6329, 3040-01-407-7562. Verify interchangeability with system specifications before substitution.
Key specifications for 7D3-05007 PC 3: Second End External Thread Length: 1.1800 INCHES NOMINAL IN; Step Quantity: 6; First End Diameter: 0.9740 INCHES NOMINAL IN; Second End Diameter: 1.0000 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.