The Shaft,shouldered, cataloged under National Stock Number 3040-01-124-8264, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Euramco Safety Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-124-8264 |
| Primary Part Number | 55-22040-15 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Euramco Safety Inc |
| Status | ACTIVE |
| Second End External Thread Length | 0.500 INCHES NOMINAL IN |
| Step Quantity | 11 |
| First End Diameter | 0.4375 INCHES NOMINAL IN |
| First End Distance From Keyway Center to End | 0.938 INCHES NOMINAL IN |
| Second End Diameter | 0.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 1.125 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN |
| First End External Thread Length | 0.438 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 1.125 INCHES NOMINAL IN |
| First End Style | EXTERNALLY THREADED AND INDENTED FLAT KEYWAY |
| Second End Keyway Width | 0.1250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.066 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.066 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND INDENTED FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 1.250 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 1.000 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.1250 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 |
|---|---|
| 55-22040-15 PRIMARY | Euramco Safety Inc (USA) |
| Reference | Meaning |
|---|---|
| CA9043-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-124-8264 is a Shaft,shouldered, manufactured by Euramco Safety Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-124-8264 has 1 manufacturer part number on file: 55-22040-15 (Euramco Safety Inc).
Key specifications for 55-22040-15: Second End External Thread Length: 0.500 INCHES NOMINAL IN; Step Quantity: 11; First End Diameter: 0.4375 INCHES NOMINAL IN; First End Distance From Keyway Center to End: 0.938 INCHES NOMINAL IN. 19 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.