The Shaft,shouldered, cataloged under National Stock Number 3040-01-678-8758, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Insinger Machine Co. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-678-8758 |
| Primary Part Number | 1000-08339 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Insinger Machine Co |
| Status | ACTIVE |
| Second End Hole Diameter | 0.156 INCHES NOMINAL IN |
| First End Diameter | 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| First End Distance From Keyway Center to End | 0.625 INCHES NOMINAL IN |
| Second End Diameter | 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Second End Distance From Keyway Center to End | 1.625 INCHES NOMINAL IN |
| First End Style | WOODRUFF KEYWAY AND CIRCULAR GROOVED |
| Second End Keyway Width | 0.1875 INCHES NOMINAL IN |
| Second End Distance Between Keyway Centers | 17.875 INCHES NOMINAL IN |
| Second End Distance From Hole Center to End | 22.3125 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 3.50 INCHES NOMINAL IN |
| First End Groove Diameter | 0.688 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Second End Style | TWO WOODRUFF KEYWAYS AND CROSS DRILLED HOLE |
| Material | STEEL COMP 304 |
| First End Groove Width | 0.125 INCHES NOMINAL IN |
| Second End Distance Between Hole Centers | 0.5 INCHES NOMINAL IN |
| External Keyway Length | 0.875 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 0.875 INCHES NOMINAL FIRST 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 |
| Part Number | Manufacturer |
|---|---|
| 1000-08339 PRIMARY | Insinger Machine Co (USA) |
| Reference | Meaning |
|---|---|
| 975-193 | 5/9 Secondary reference Insinger Machine Co |
NSN 3040-01-678-8758 is a Shaft,shouldered, manufactured by Insinger Machine Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-678-8758 has 1 manufacturer part number on file: 1000-08339 (Insinger Machine Co).
Key specifications for 1000-08339: Second End Hole Diameter: 0.156 INCHES NOMINAL IN; First End Diameter: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN; First End Distance From Keyway Center to End: 0.625 INCHES NOMINAL IN; Second End Diameter: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN. 19 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.