The Gear,worm Wheel, cataloged under National Stock Number 3020-01-004-3196, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-004-3196 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Helix Angle | 1.7831 DEGREES |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Teeth Quantity | 100 |
| Body Style | WEBBED, OFFSET, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 PLAIN AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.278 INCHES FIRST END IN |
| Face Type | CONCAVE |
| Mounting Hole Nominal Diameter | 0.125 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.5615 INCHES MINIMUM AND 1.5625 INCHES MAXIMUM IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.593 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY 464 OVERALL |
| Bolt Hole Circle Nominal Diameter | 0.375 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mating Thread Lead Quantity | 1 |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.060 INCHES SECOND END IN |
| Face Nominal Width | 0.180 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 |
|---|---|
| 0460C0069-3 | 3/9 Design control — primary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 3020-01-004-3196 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-004-3196: Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN; Helix Angle: 1.7831 DEGREES; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 100. 23 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.