The Gearshaft,spur, cataloged under National Stock Number 3040-01-383-5103, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-383-5103 |
| Primary Part Number | 025558-1 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 4130 |
| Shaft Largest Diameter | 0.187 INCHES NOMINAL IN |
| Shaft End Size | 0.124 INCHES AND 0.187 INCHES IN |
| Teeth Quantity | 18 |
| Diametral Pitch | 16 |
| Gear Outside Diameter | 1.250 INCHES NOMINAL IN |
| Longer Shaft Segment Length | 0.516 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 4130 |
| Shaft End Type | CIRCULAR GROOVED 2 AND PLAIN |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 025558-1 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 025558-1 | 3/9 Design control — primary reference Meggitt Defense Systems, Inc. Dba Meggitt Western Design |
NSN 3040-01-383-5103 is a Gearshaft,spur, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-383-5103 has 1 manufacturer part number on file: 025558-1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for 025558-1: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 4130; Shaft Largest Diameter: 0.187 INCHES NOMINAL IN; Shaft End Size: 0.124 INCHES AND 0.187 INCHES 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.