The Gear Sector,helical, cataloged under National Stock Number 3020-00-906-9940, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ge Aviation Systems Llc. Government technical data includes 26 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-906-9940 |
| Primary Part Number | 141663-04 |
| Item Name | Gear Sector,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.120 INCHES BOTH ENDS IN |
| Helix Angle | 3.0000 DEGREES |
| Hub Nominal Diameter | 0.180 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.156 INCHES FIRST END IN |
| Teeth Quantity | 60 |
| Clamping Surface Nominal Length | 0.172 INCHES FIRST END IN |
| Nominal Outside Radius | 0.431 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.016 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB |
| Material Document and Classification | L-P-392,TYPE 1,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Tooth Form | STUB |
| Hub Style Designator | SPLIT FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Arc Nominal Length | 0.677 INCHES IN |
| Surface Treatment | PASSIVATE HUB |
| Pitch Radius | 0.4172 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL HUB |
| Material | PLASTIC ACETAL BODY |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.062 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 141663-04 PRIMARY | Ge Aviation Systems Llc (USA) |
NSN 3020-00-906-9940 is a Gear Sector,helical, manufactured by Ge Aviation Systems Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-906-9940 has 1 manufacturer part number on file: 141663-04 (Ge Aviation Systems Llc).
Key specifications for 141663-04: Bore Nominal Diameter: 0.120 INCHES BOTH ENDS IN; Helix Angle: 3.0000 DEGREES; Hub Nominal Diameter: 0.180 INCHES SECOND END IN; Hub Nominal Diameter: 0.156 INCHES FIRST END IN. 26 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 3020-00-906-9940 has DEMIL Code Q. 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.