The Shaft,straight, cataloged under National Stock Number 3040-01-079-5826, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-01-079-5826 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES |
| First End Diameter | 0.7490 INCHES NOMINAL IN |
| Second End Diameter | 0.7490 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 5.875 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| Second End Keyway Width | 0.1875 INCHES NOMINAL IN |
| First End Keyway Depth | 0.110 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.110 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INDENTED FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 2.500 INCHES NOMINAL FIRST END IN |
| External Keyway Length | 2.250 INCHES NOMINAL SECOND END IN |
| First End Keyway Width | 0.1875 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 |
|---|---|
| 80370 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 80370 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
NSN 3040-01-079-5826 is a Shaft,straight, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-079-5826: Surface Finish: 16.0 MICROINCHES; First End Diameter: 0.7490 INCHES NOMINAL IN; Second End Diameter: 0.7490 INCHES NOMINAL IN; Second End Distance From Keyway Center to End: 5.875 INCHES NOMINAL IN. 14 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.