The Gear,worm, cataloged under National Stock Number 3020-01-188-3786, 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 Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-188-3786 |
| Primary Part Number | 363C146-1 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HANDRIGHT-HAND |
| Helix Angle | 4.0000 DEGREES4.0000 DEGREES |
| Hub Nominal Diameter | 0.230 INCHES SECOND END0.230 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.249 INCHES FIRST END0.249 INCHES FIRST END IN |
| Clamping Surface Nominal Length | 0.160 INCHES SECOND END0.160 INCHES SECOND END IN |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.190 INCHES SECOND END0.190 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.240 INCHES FIRST END0.240 INCHES FIRST END IN |
| Face Type | STRAIGHTSTRAIGHT |
| Nominal Overall Length | 0.880 INCHES0.880 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.3736 INCHES NOMINAL0.3736 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST ENDPLAIN FIRST END |
| Hub Style Designator | SPLIT SECOND ENDSPLIT SECOND END |
| Thread Form Quantity | 11 |
| Nominal Outside Diameter | 0.436 INCHES0.436 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 20.0000 DEGREES20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.450 INCHES0.450 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 |
|---|---|
| 363C146-1 PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division (USA) |
| Reference | Meaning |
|---|---|
| 363C146-1 | 5/9 Secondary reference Eaton Motor Site |
NSN 3020-01-188-3786 is a Gear,worm, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-188-3786 has 1 manufacturer part number on file: 363C146-1 (Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division).
Key specifications for 363C146-1: Thread Form Direction: RIGHT-HANDRIGHT-HAND; Helix Angle: 4.0000 DEGREES4.0000 DEGREES; Hub Nominal Diameter: 0.230 INCHES SECOND END0.230 INCHES SECOND END IN; Hub Nominal Diameter: 0.249 INCHES FIRST END0.249 INCHES FIRST END IN. 21 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.