The Shaft,straight, cataloged under National Stock Number 3040-00-557-4642, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-557-4642 |
| Primary Part Number | MDT2068-47 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| First End Diameter | 0.7500 INCHES NOMINAL IN |
| First End Flat Depth | 0.3200 INCHES NOMINAL IN |
| Second End Diameter | 0.7500 INCHES NOMINAL IN |
| First End Style | FLATTED |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.5000 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.2100 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.115 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| First End Flat Length | 0.900 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| MDT2068-47 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 3040-00-557-4642 is a Shaft,straight, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-557-4642 has 1 manufacturer part number on file: MDT2068-47 (The Boeing Company Div Defense).
Key specifications for MDT2068-47: First End Diameter: 0.7500 INCHES NOMINAL IN; First End Flat Depth: 0.3200 INCHES NOMINAL IN; Second End Diameter: 0.7500 INCHES NOMINAL IN; First End Style: FLATTED. 12 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.