The Shaft,shouldered, cataloged under National Stock Number 3040-01-259-8869, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-259-8869 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 2.1638 INCHES NOMINAL IN |
| Second End Diameter | 2.4370 INCHES NOMINAL IN |
| Largest Step Diameter | 2.437 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 7.000 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.4990 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.286 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.265 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INDENTED FLAT KEYWAY |
| Material | STEEL COMP 1045 |
| External Keyway Length | 8.500 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 5.400 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.4990 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 |
| Reference | Meaning |
|---|---|
| 640-1347 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-259-8869 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-259-8869: Step Quantity: 2; First End Diameter: 2.1638 INCHES NOMINAL IN; Second End Diameter: 2.4370 INCHES NOMINAL IN; Largest Step Diameter: 2.437 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.