The Gear Cluster, cataloged under National Stock Number 3020-00-133-1869, 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 Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-133-1869 |
| Primary Part Number | MGC330 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.0468 INCHES BOTH ENDSUNABLE TO DECODE IN |
| Backlash Designation | GRADE C FIRST GEARUNABLE TO DECODE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEARUNABLE TO DECODE |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO.5.4.1 MIL STD SINGLE TREATMENT RESPONSE SECOND GEAR |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO.5.4.1 MIL STD SINGLE TREATMENT RESPONSE SECOND GEARUNABLE TO DECODE |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO.5.4.1 MIL STD SINGLE TREATMENT RESPONSE SHAFT/HUB |
| Design Type | SPUR SECOND GEARUNABLE TO DECODE |
| Design Type | SPUR FIRST GEARUNABLE TO DECODE |
| Precision Classification | QUALITY NUMBER 10 SECOND GEARUNABLE TO DECODE |
| Nominal Overall Length | 0.345 INCHES IN |
| Material Document and Classification | QQ-A-250/4,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEARUNABLE TO DECODE |
| Material Document and Classification | QQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEARUNABLE TO DECODE |
| Material Document and Classification | QQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUBUNABLE TO DECODE |
| Hub Style Designator | 1 STEP FIRST ENDUNABLE TO DECODE |
| Hub Style Designator | 1 STEP SECOND ENDUNABLE TO DECODE |
| Hub Nominal Length | 0.067 INCHES SECOND ENDUNABLE TO DECODE IN |
| Hub Nominal Length | 0.1562 INCHES FIRST ENDUNABLE TO DECODE IN |
| Nominal Outside Diameter | 0.208 INCHES SECOND GEARUNABLE TO DECODE IN |
| Nominal Outside Diameter | 0.667 INCHES FIRST GEARUNABLE TO DECODE IN |
| Surface Treatment | PASSIVATE SECOND GEAR |
| Surface Treatment | PASSIVATE SHAFT/HUB |
| Surface Treatment | UNABLE TO DECODE |
| Surface Treatment | ANODIZE FIRST GEAR |
| Material | ALUMINUM ALLOY 2024 FIRST GEARUNABLE TO DECODE |
| Material | STEEL COMP 416 SECOND GEARUNABLE TO DECODE |
| Material | STEEL COMP 416 SHAFT/HUBUNABLE TO DECODE |
| Construction | ASSEMBLED |
| 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 |
|---|---|
| MGC330 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| Reference | Meaning |
|---|---|
| MGC330 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| MGC330 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-00-133-1869 is a Gear Cluster, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-133-1869 has 1 manufacturer part number on file: MGC330 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for MGC330: Hub Nominal Diameter: 0.0468 INCHES BOTH ENDSUNABLE TO DECODE IN; Backlash Designation: GRADE C FIRST GEARUNABLE TO DECODE; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEARUNABLE TO DECODE. 28 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.