The Shaft,shouldered, cataloged under National Stock Number 3040-01-287-4048, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-287-4048 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 8.0 MICROINCHES |
| Second End External Thread Length | 0.375 INCHES NOMINAL IN |
| Step Quantity | 10 |
| First End Diameter | 1.0025 INCHES NOMINAL IN |
| Second End Diameter | 1.1730 INCHES NOMINAL IN |
| Largest Step Diameter | 1.4365 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.1875 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286, CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| First End Keyway Depth | 0.1395 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.111 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND FLAT KEYWAY |
| Material | NICKEL ALLOY |
| External Keyway Length | 0.594 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 2.125 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.2500 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 |
|---|---|
| 4489817 PIECE 1 | 3/9 Design control — primary reference U.S. Government activity |
| 4489817 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-287-4048 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-287-4048: Surface Finish: 8.0 MICROINCHES; Second End External Thread Length: 0.375 INCHES NOMINAL IN; Step Quantity: 10; First End Diameter: 1.0025 INCHES NOMINAL IN. 17 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.