The Shaft,shouldered, cataloged under National Stock Number 3040-01-291-5270, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Siemens Energy, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Siemens Energy, Inc. (CAGE 16712) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-291-5270 |
| Primary Part Number | RGR-421DKX8 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| H-2327 PIECE 7 | Siemens Energy, Inc. (USA) |
| RGR-421DKX8 PRIMARY | Siemens Energy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| H-2327 | D/9 Drawing number reference only Siemens Energy, Inc. |
NSN 3040-01-291-5270 is a Shaft,shouldered, manufactured by Siemens Energy, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-291-5270 has 2 manufacturer part numbers on file: H-2327 PIECE 7 (Siemens Energy, Inc.), RGR-421DKX8 (Siemens Energy, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-291-5279. Verify interchangeability with system specifications before substitution.
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.