The Shaft,shouldered, cataloged under National Stock Number 3040-01-348-6348, 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16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-348-6348 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 250.0 MICROINCHES |
| Second End External Thread Length | 0.459 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 1.7500 INCHES NOMINAL IN |
| Second End Diameter | 1.5620 INCHES NOMINAL IN |
| Largest Step Diameter | 1.811 INCHES NOMINAL IN |
| First End External Thread Length | 1.880 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 0.351 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Second End Keyway Width | 0.3200 INCHES NOMINAL IN |
| Material Document and Classification | AISI 1045 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Keyway Depth | 0.101 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNALLY THREADED AND INDENTED FLAT KEYWAY |
| Material | STEEL COMP 1045 |
| External Keyway Length | 0.703 INCHES NOMINAL SECOND END 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 |
|---|---|
| 8046428-01 | 5/9 Secondary reference U.S. Government activity |
| 8046428-01 | 3/9 Design control — primary reference Environmental Elements Corp |
| 8046428 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-348-6348 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-348-6348: Surface Finish: 250.0 MICROINCHES; Second End External Thread Length: 0.459 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 1.7500 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.