The Shaft,shouldered, cataloged under National Stock Number 3040-00-007-5930, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is B & B Precision Components Inc. Dba B & B Precision Components. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3040-00-007-5930 |
| Primary Part Number | A51B52525-11 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | B & B Precision Components Inc. Dba B & B Precision Components |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| FSC Application Data | FLAP,WING LANDING |
| Step Quantity | 3 |
| First End Diameter | 0.4370 INCHES NOMINAL IN |
| Largest Step Diameter | 0.625 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | IDENTICAL |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| A51B52525-11 | B & B Precision Components Inc. Dba B & B Precision Components (USA) |
| Reference | Meaning |
|---|---|
| A51B52525-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51B52525-11 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| A51B52525-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 3040-00-007-5930 is a Shaft,shouldered, manufactured by B & B Precision Components Inc. Dba B & B Precision Components, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-007-5930 has 1 manufacturer part number on file: A51B52525-11 (B & B Precision Components Inc. Dba B & B Precision Components).
Key specifications for A51B52525-11: Surface Finish: 125.0 MICROINCHES; FSC Application Data: FLAP,WING LANDING; Step Quantity: 3; First End Diameter: 0.4370 INCHES NOMINAL IN. 8 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.