The Shaft,shouldered, cataloged under National Stock Number 3040-00-115-0397, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Dynamics Mission Systems, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-115-0397 |
| Primary Part Number | SMC617852 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Dynamics Mission Systems, Inc. |
| Status | ACTIVE |
| Step Quantity | 3 |
| First End Diameter | 0.2500 INCHES NOMINAL IN |
| Second End Diameter | 0.1880 INCHES NOMINAL IN |
| Largest Step Diameter | 0.375 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| Second End Internal Thread Length | 0.250 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 |
|---|---|
| SMC617852 | General Dynamics Mission Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SMC617852 | 3/9 Design control — primary reference Lorben Corp |
NSN 3040-00-115-0397 is a Shaft,shouldered, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-115-0397 has 1 manufacturer part number on file: SMC617852 (General Dynamics Mission Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-100-2173. Verify interchangeability with system specifications before substitution.
Key specifications for SMC617852: Step Quantity: 3; First End Diameter: 0.2500 INCHES NOMINAL IN; Second End Diameter: 0.1880 INCHES NOMINAL IN; Largest Step Diameter: 0.375 INCHES NOMINAL IN. 9 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.