The Gear,helical, cataloged under National Stock Number 3020-00-895-9498, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-895-9498 |
| Primary Part Number | 142192-01 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.091 INCHES BOTH ENDS IN |
| Helix Angle | 3.0000 DEGREES |
| Hub Nominal Diameter | 0.125 INCHES FIRST END IN |
| Teeth Quantity | 120 |
| Clamping Surface Nominal Length | 0.1320 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE HUB |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.132 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.032 INCHES SECOND END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | L-P-392,TYPE 1,CLASS 1 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-S-7720,COND A MIL SPEC SINGLE MATERIAL RESPONSE HUB |
| Pitch Diameter | 1.0010 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 1.017 INCHES IN |
| Surface Treatment | PASSIVATE HUB |
| Pressure Angle | 20.0000 DEGREES |
| Material | PLASTIC BODY |
| Material | STEEL COMP 302 OR STEEL COMP 303 HUB |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.061 INCHES 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 |
|---|---|
| 142192-01 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 142192 | D/9 Drawing number reference only Ge Aviation Systems Llc |
NSN 3020-00-895-9498 is a Gear,helical, manufactured by Ge Aviation Systems Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-895-9498 has 1 manufacturer part number on file: 142192-01 (Ge Aviation Systems Llc).
Key specifications for 142192-01: Bore Nominal Diameter: 0.091 INCHES BOTH ENDS IN; Helix Angle: 3.0000 DEGREES; Hub Nominal Diameter: 0.125 INCHES FIRST END IN; Teeth Quantity: 120. 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.
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.