The Gearshaft,spur, cataloged under National Stock Number 3040-00-943-7663, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is United Aeronautical Corporation Dba United Aeronautical Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-943-7663 |
| Primary Part Number | 4550854-503 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | United Aeronautical Corporation Dba United Aeronautical Corp |
| Status | ACTIVE |
| Shaft Material | STEEL COMP 4140 |
| Diametral Pitch | 48 |
| Gear Outside Diameter | 2.022 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 4140 |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.187 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 |
|---|---|
| 4550854-503 PRIMARY | United Aeronautical Corporation Dba United Aeronautical Corp (USA) |
| Reference | Meaning |
|---|---|
| 4550854-503 | 5/2 Secondary reference U.S. Government activity |
| 4550854-503 | 5/9 Secondary reference Consolidated Aeronautics Corp |
NSN 3040-00-943-7663 is a Gearshaft,spur, manufactured by United Aeronautical Corporation Dba United Aeronautical Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-943-7663 has 1 manufacturer part number on file: 4550854-503 (United Aeronautical Corporation Dba United Aeronautical Corp).
Key specifications for 4550854-503: Shaft Material: STEEL COMP 4140; Diametral Pitch: 48; Gear Outside Diameter: 2.022 INCHES NOMINAL IN; Overall Length: 9.910 INCHES NOMINAL IN. 6 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.