The Shaft,shouldered, cataloged under National Stock Number 3040-00-830-8022, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is De Havilland Aircraft of Canada Limited. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-830-8022 |
| Primary Part Number | C4UM1025-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | De Havilland Aircraft of Canada Limited |
| Status | ACTIVE |
| FSC Application Data | DRIVE MECHANISM,HELICOPTER |
| First End Hole Depth | 1.625 INCHES NOMINAL IN |
| End Similarity | IDENTICAL |
| First End Distance From Hole Center to End | 0.220 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 |
|---|---|
| C4UM1025-1 PRIMARY | De Havilland Aircraft of Canada Limited (CAN) |
| Reference | Meaning |
|---|---|
| 1620AC1-037 | 5/2 Secondary reference U.S. Government activity |
| 1560CV2-219-3 | 5/9 Secondary reference Brant Machine Inc |
NSN 3040-00-830-8022 is a Shaft,shouldered, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-830-8022 has 1 manufacturer part number on file: C4UM1025-1 (De Havilland Aircraft of Canada Limited).
Key specifications for C4UM1025-1: FSC Application Data: DRIVE MECHANISM,HELICOPTER; First End Hole Depth: 1.625 INCHES NOMINAL IN; Overall Length: 25.120 INCHES NOMINAL IN; End Similarity: IDENTICAL. 4 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.