The Gear Cluster, cataloged under National Stock Number 3020-00-476-3003, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-476-3003 |
| Primary Part Number | 689498 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY OVERALL |
| Hub Nominal Diameter | 13.312 INCHES FIRST END IN |
| Features Provided | MOUNTING BOLT HEAD ACCOMMODATION ADJACENT TO SECOND END |
| Counterbore Nominal Depth | 0.125 INCHES FIRST END IN |
| Counterbore Nominal Diameter | 12.938 INCHES FIRST END IN |
| Hub Style Designator | PLAIN FIRST END |
| Design Type | SPUR SECOND GEAR |
| Nominal Outside Diameter | 13.123 INCHES SECOND GEAR IN |
| Precision Classification | QUALITY NUMBER 12 ALL GEARS |
| Hub Nominal Length | 0.094 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Diameter | 12.953 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.2180 INCHES FIRST END IN |
| Design Type | SPUR FIRST GEAR |
| Nominal Overall Length | 0.812 INCHES IN |
| Bore Nominal Diameter | 12.062 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 13.530 INCHES FIRST GEAR IN |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Construction | SOLID |
| Bore Style | W/COUNTERBORE FIRST END |
| Attachment Method | MOUNTING HOLE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-476-3003 is a Gear Cluster, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-476-3003 has 2 cross-referenced part numbers: 689498 (Lockheed Martin Corporation Div Rms - Mitchel Field), 689498 (Northrop Grumman Systems Corporation).
There are 2 known substitutes for 3020-00-476-3003: 5360-00-335-5658, 2910-00-453-6497. Verify interchangeability with system specifications before substitution.
Key specifications for 689498: Material: ALUMINUM ALLOY OVERALL; Hub Nominal Diameter: 13.312 INCHES FIRST END IN; Features Provided: MOUNTING BOLT HEAD ACCOMMODATION ADJACENT TO SECOND END; Counterbore Nominal Depth: 0.125 INCHES FIRST END IN. 20 total characteristics are documented in the Federal Logistics Information System.