The Shaft,shouldered, cataloged under National Stock Number 3040-01-153-1656, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-153-1656 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| FSC Application Data | RACK,BOMB,EJECTOR AIRCRAFT,BRU-32A A |
| Second End External Thread Length | 0.286 INCHES NOMINAL IN |
| Step Quantity | 9 |
| First End Diameter | 0.1840 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN |
| Second End Diameter | 0.3678 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.688 INCHES NOMINAL IN |
| First End External Thread Length | 0.679 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| D013449-503 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-153-1656 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-153-1656: Surface Finish: 125.0 MICROINCHES; FSC Application Data: RACK,BOMB,EJECTOR AIRCRAFT,BRU-32A A; Second End External Thread Length: 0.286 INCHES NOMINAL IN; Step Quantity: 9. 12 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.
NSN 3040-01-153-1656 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.