The Shaft,shouldered, cataloged under National Stock Number 3040-00-592-7896, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-592-7896 |
| Primary Part Number | 1380738 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| FSC Application Data | PUMP AXIAL PISTONS |
| Second End Hole Diameter | 0.1280 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 0.1560 INCHES NOMINAL IN |
| Second End Diameter | 0.3120 INCHES NOMINAL IN |
| Largest Step Diameter | 0.312 INCHES NOMINAL IN |
| First End Hole Depth | 0.1560 INCHES NOMINAL IN |
| First End Style | UNTHREADED CROSS DRILLED |
| Second End Distance From Hole Center to End | 0.1720 INCHES NOMINAL IN |
| Second End Hole Depth | 0.312 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Hole Diameter | 0.0700 INCHES NOMINAL IN |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | STEEL |
| First End Distance From Hole Center to End | 0.094 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 |
|---|---|
| 1380738 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 1380738 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-592-7896 is a Shaft,shouldered, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-592-7896 has 1 manufacturer part number on file: 1380738 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 1380738: Surface Finish: 125.0 MICROINCHES; FSC Application Data: PUMP AXIAL PISTONS; Second End Hole Diameter: 0.1280 INCHES NOMINAL IN; Step Quantity: 2. 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.