The Shaft,shouldered, cataloged under National Stock Number 3040-01-397-5265, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is A and M Aerospace, Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-397-5265 |
| Primary Part Number | 3331133-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | A and M Aerospace, Inc. |
| Status | ACTIVE |
| Second End External Thread Length | 0.2500 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.2500 INCHES NOMINAL IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.750 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL COMP 303SE |
| 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 |
|---|---|
| 3331133-1 | A and M Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3331133-1 | 3/2 Design control — primary reference U.S. Government activity |
| 3331133 | D/9 Drawing number reference only U.S. Government activity |
| 3331133-1 | 5/9 Secondary reference Fmc Corp Industrial Packaging Div |
NSN 3040-01-397-5265 is a Shaft,shouldered, manufactured by A and M Aerospace, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-397-5265 has 1 manufacturer part number on file: 3331133-1 (A and M Aerospace, Inc.).
Key specifications for 3331133-1: Second End External Thread Length: 0.2500 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.2500 INCHES NOMINAL IN; Second End Diameter: 0.2500 INCHES NOMINAL IN. 9 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.