The Gear,bevel, cataloged under National Stock Number 3020-00-319-6502, 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 28 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-319-6502 |
| Primary Part Number | 520808 |
| Item Name | Gear,bevel |
| 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 | 0.7500 INCHES COUNTER BORE SECOND END IN |
| Hub Nominal Diameter | 1.1250 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.6250 INCHES SECOND END IN |
| Teeth Quantity | 72 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.8752 INCHES COUNTER BORE SECOND END IN |
| Pitch Angle | 58.0000 DEGREES |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Mounting Hole Type and Quantity | 3 THREADED AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.0560 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.3440 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 8 |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 0.7880 INCHES IN |
| Style Designator | PERIPHERAL FACE, PROTRUDING HUBS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.2500 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Mounting Hole Nominal Thread Size | 0.1640 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 2.2720 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.2500 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Counterbore Nominal Depth | 0.7880 INCHES COUNTER BORE SECOND END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.2500 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 |
NSN 3020-00-319-6502 is a Gear,bevel, 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 3020-00-319-6502 has 2 manufacturer part numbers on file: 171B833 (General Electric Company), 520808 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 520808: Bore Nominal Diameter: 0.7500 INCHES COUNTER BORE SECOND END IN; Hub Nominal Diameter: 1.1250 INCHES FIRST END IN; Hub Nominal Diameter: 1.6250 INCHES SECOND END IN; Teeth Quantity: 72. 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.