The Shaft,shouldered, cataloged under National Stock Number 3040-01-383-5736, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-383-5736 |
| Primary Part Number | 025557-1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Second End External Thread Length | 0.6090 INCHES NOMINAL IN |
| First End Pitch Diameter | 0.5625 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.7400 INCHES NOMINAL IN |
| First End Spline Major Diameter | 0.5902 INCHES NOMINAL IN |
| Second End Diameter | 0.2500 INCHES NOMINAL IN |
| Largest Step Diameter | 0.7400 INCHES NOMINAL IN |
| First End Style | SPLINED (INVOLUTE) |
| Second End Groove Diameter | 0.4320 INCHES NOMINAL IN |
| First End Pressure Angle | 30.0 DEGREES NOMINAL |
| First End Spline Length | 1.7900 INCHES NOMINAL IN |
| First End Spline Quantity | 18 |
| End Similarity | NOT IDENTICAL |
| Second End Groove Width | 0.1000 INCHES NOMINAL IN |
| Second End Distance From End to Groove | 0.6090 INCHES NOMINAL IN |
| Second End Style | CIRCULAR GROOVED AND EXTERNALLY THREADED |
| First End Spline Minor Diameter | 0.5080 INCHES MINIMUM IN |
| Material | STEEL COMP 4140 |
| 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 |
|---|---|
| 025557-1 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 025557-1 | 3/9 Design control — primary reference Meggitt Defense Systems, Inc. Dba Meggitt Western Design |
NSN 3040-01-383-5736 is a Shaft,shouldered, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-383-5736 has 1 manufacturer part number on file: 025557-1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for 025557-1: Surface Finish: 125.0 MICROINCHES; Second End External Thread Length: 0.6090 INCHES NOMINAL IN; First End Pitch Diameter: 0.5625 INCHES NOMINAL IN; Step Quantity: 4. 19 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.