The Gear,spur, cataloged under National Stock Number 3020-00-239-0090, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 22 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 | 3020-00-239-0090 |
| Primary Part Number | 2035084 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.2407 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.3115 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.5620 INCHES SECOND END IN |
| Backlash Designation | GRADE A |
| Teeth Quantity | 156 |
| Clamping Surface Nominal Length | 0.3100 INCHES FIRST END IN |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.3440 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1562 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 13 OR QUALITY NUMBER 14 |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-B-626,ALLOY 360,HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.9000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 3.9490 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY 360 OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.125 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 |
|---|---|
| 2035084 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-239-0090 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-239-0090 has 1 manufacturer part number on file: 2035084 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2035084: Bore Nominal Diameter: 0.2407 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.3115 INCHES FIRST END IN; Hub Nominal Diameter: 0.5620 INCHES SECOND END IN; Backlash Designation: GRADE A. 22 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.