The Shaft,shouldered, cataloged under National Stock Number 3040-01-328-5520, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-328-5520 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End External Thread Length | 0.4060 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN |
| Second End Diameter | 0.2480 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.375 INCHES NOMINAL IN |
| First End Style | CIRCULAR GROOVED |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| End Similarity | NOT IDENTICAL |
| First End Distance From End to Groove | 0.158 INCHES NOMINAL IN |
| First End Groove Diameter | 0.2100 INCHES MINIMUM AND 0.2130 INCHES MAXIMUM IN |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| First End Groove Width | 0.0290 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM 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 |
|---|---|
| 3647847-1 | 3/2 Design control — primary reference U.S. Government activity |
| 3647847 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-328-5520 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5930-01-614-4635. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-328-5520: Second End External Thread Length: 0.4060 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.2485 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM IN; Second End Diameter: 0.2480 INCHES MINIMUM AND 0.2520 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.