The Shaft,shouldered, cataloged under National Stock Number 3040-00-015-2161, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-015-2161 |
| Primary Part Number | 6841271 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| First End Spline Length | 0.230 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Spline Length | 0.400 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 | F |
| Part Number | Manufacturer |
|---|---|
| 6841271 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6841271 | 5/9 Secondary reference General Motors Corp |
| 6841271 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6841271 | 5/9 Secondary reference Pacific Sky Supply, Inc. Dba Pacific Sky Supply Inc |
NSN 3040-00-015-2161 is a Shaft,shouldered, manufactured by Rolls-Royce Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-015-2161 has 1 manufacturer part number on file: 6841271 (Rolls-Royce Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-422-0686. Verify interchangeability with system specifications before substitution.
Key specifications for 6841271: Overall Length: 2.588 INCHES NOMINAL IN; First End Spline Length: 0.230 INCHES NOMINAL IN; End Similarity: NOT IDENTICAL; Second End Spline Length: 0.400 INCHES NOMINAL IN. 3 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.