The Shaft,shouldered, cataloged under National Stock Number 3040-01-131-0269, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-131-0269 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Step Quantity | 7 |
| First End Diameter | 0.3750 INCHES NOMINAL IN |
| Second End Diameter | 0.8720 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN |
| Second End Step Length | 0.375 INCHES NOMINAL IN |
| Largest Step Diameter | 0.872 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN |
| First End External Thread Length | 0.567 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | MIL-B-24059 MIL SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| Second End Style | SQUARE (ROUND CORNERS) |
| Material | COPPER ALLOY 632 |
| Second End Width Across Flats | 0.625 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 |
| Reference | Meaning |
|---|---|
| 87776-0107 | D/9 Drawing number reference only U.S. Government activity |
| 87776-0107 ITEM 7 | 5/9 Secondary reference Drw Mfg Co |
| 201-4684482 | D/9 Drawing number reference only U.S. Government activity |
| 201-4684482 ITEM 7 | 5/2 Secondary reference U.S. Government activity |
| 87776-0107 ITEM 7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-131-0269 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-155-0197, 3040-01-191-8370. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-131-0269: Surface Finish: 63.0 MICROINCHES; Step Quantity: 7; First End Diameter: 0.3750 INCHES NOMINAL IN; Second End Diameter: 0.8720 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN. 13 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.