The Gear,worm Wheel, cataloged under National Stock Number 3020-01-185-9586, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-185-9586 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.500 INCHES BOTH ENDS IN |
| Helix Angle | 20.0000 DEGREES |
| Hub Nominal Diameter | 2.500 INCHES FIRST END IN |
| Hub Nominal Diameter | 2.375 INCHES SECOND END IN |
| Teeth Quantity | 27 |
| Body Style | WEBBED, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.500 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.625 INCHES SECOND END IN |
| Face Type | CONCAVE |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 5.7504 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | 1 GROOVE FIRST END |
| Nominal Outside Diameter | 6.181 INCHES IN |
| Pressure Angle | 45.0005 DEGREES |
| Material | COPPER ALLOY OVERALL |
| First Groove Nominal Diameter | 0.250 INCHES SECOND END IN |
| Face Nominal Width | 3.625 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 |
| Reference | Meaning |
|---|---|
| 279D311P1 | C/1 Advisory reference — outside the item-of-supply concept General Electric Co Naval and Drive Turbine Systems Dept |
| 7362E90 PIECE 66 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 279D311 | D/9 Drawing number reference only General Electric Co Naval and Drive Turbine Systems Dept |
| 279D311 PIECE 1 | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
| D3291178 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-185-9586 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-185-9586: Bore Nominal Diameter: 1.500 INCHES BOTH ENDS IN; Helix Angle: 20.0000 DEGREES; Hub Nominal Diameter: 2.500 INCHES FIRST END IN; Hub Nominal Diameter: 2.375 INCHES SECOND END IN. 19 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.