The Shaft,shouldered, cataloged under National Stock Number 3040-00-406-5035, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is L3harris Technologies, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-406-5035 |
| Primary Part Number | 64820-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 2 |
| First End Diameter | 0.1875 INCHES NOMINAL IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.250 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Material Document and Classification | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Groove Diameter | 0.1750 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.313 INCHES NOMINAL IN |
| Second End Groove Width | 0.1800 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.406 INCHES NOMINAL IN |
| First End Groove Diameter | 0.1750 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED |
| Material | STEEL |
| First End Groove Width | 0.1800 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 |
|---|---|
| 64820-1 PRIMARY | L3harris Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 64820-1 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-406-5035 is a Shaft,shouldered, manufactured by L3harris Technologies, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-406-5035 has 1 manufacturer part number on file: 64820-1 (L3harris Technologies, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5950-00-596-6793, 2510-00-769-7442, 4820-01-188-0120. Verify interchangeability with system specifications before substitution.
Key specifications for 64820-1: Surface Finish: 32.0 MICROINCHES; Step Quantity: 2; First End Diameter: 0.1875 INCHES NOMINAL IN; Second End Diameter: 0.2500 INCHES NOMINAL IN. 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.