The Shaft,shouldered, cataloged under National Stock Number 3040-01-286-8655, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Dept of the Army U S Army Electronics Command Night Vision Laboratory. 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-286-8655 |
| Primary Part Number | 5006578 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Dept of the Army U S Army Electronics Command Night Vision Laboratory |
| Status | ACTIVE |
| Second End Flat Length | 0.312 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| Second End Diameter | 0.2497 INCHES NOMINAL IN |
| Largest Step Diameter | 0.500 INCHES NOMINAL IN |
| First End Slot Width | 0.188 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED AND SLOTTED |
| Material Document and Classification | ASTM-A582,COND A NATIONAL SPEC ALL MATERIAL RESPONSES |
| Second End Groove Diameter | 0.2300 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Slot Depth | 0.396 INCHES NOMINAL IN |
| First End Distance From End to Groove | 0.437 INCHES NOMINAL IN |
| Second End Groove Width | 0.0290 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.599 INCHES NOMINAL IN |
| First End Groove Diameter | 0.2300 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND FLATTED |
| Material | STEEL COMP 303 |
| First End Groove Width | 0.0400 INCHES NOMINAL IN |
| Second End Flat Depth | 0.0497 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 |
|---|---|
| 5006578 PRIMARY | Dept of the Army U S Army Electronics Command Night Vision Laboratory (USA) |
NSN 3040-01-286-8655 is a Shaft,shouldered, manufactured by Dept of the Army U S Army Electronics Command Night Vision Laboratory, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-286-8655 has 1 manufacturer part number on file: 5006578 (Dept of the Army U S Army Electronics Command Night Vision Laboratory).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-444-0696. Verify interchangeability with system specifications before substitution.
Key specifications for 5006578: Second End Flat Length: 0.312 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.5000 INCHES NOMINAL IN; Second End Diameter: 0.2497 INCHES NOMINAL 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.