The Shaft,shouldered, cataloged under National Stock Number 3040-01-160-0146, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-160-0146 |
| Primary Part Number | 2047398 PIECE 26 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 9 |
| First End Diameter | 0.6220 INCHES NOMINAL IN |
| Second End Diameter | 0.5620 INCHES NOMINAL IN |
| Largest Step Diameter | 1.000 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.1270 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.120 INCHES MAXIMUM IN |
| Second End Keyway Depth | 0.1470 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAY |
| Material | NICKEL ALLOY |
| External Keyway Length | 0.8800 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 1.250 INCHES MAXIMUM FIRST END IN |
| First End Keyway Width | 0.1900 INCHES MAXIMUM 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 |
|---|---|
| 2047398 PIECE 26 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| SSN671-400-2047398 PIECE 26 | 3/2 Design control — primary reference U.S. Government activity |
| 71631-01X12 PIECE 26 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-160-0146 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-160-0146 has 1 manufacturer part number on file: 2047398 PIECE 26 (Naval Sea Systems Command).
Key specifications for 2047398 PIECE 26: Surface Finish: 32.0 MICROINCHES; Step Quantity: 9; First End Diameter: 0.6220 INCHES NOMINAL IN; Second End Diameter: 0.5620 INCHES NOMINAL IN. 16 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.