The Gear,spur, cataloged under National Stock Number 3020-01-389-3199, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-389-3199 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.1873 INCHES BOTH ENDS IN |
| Teeth Quantity | 57 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 1 PLAIN AXIALLY THROUGH FLANGE |
| Nominal Distance Between Body Face and Protruding Hub End | 0.222 INCHES BETWEEN BODY AND FLANGE IN |
| Mounting Hole Nominal Diameter | 0.1873 INCHES AXIALLY THROUGH FLANGE IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.1875 INCHES NOMINAL IN |
| Nominal Outside Diameter | 1.2291 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Bolt Hole Circle Nominal Diameter | 0.113 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| B-0329 | 3/9 Design control — primary reference L3 Technologies, Inc. |
| 10-5003 ITEM NO 27 | 5/9 Secondary reference L3 Technologies, Inc. |
NSN 3020-01-389-3199 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-389-3199: Bore Nominal Diameter: 0.1873 INCHES BOTH ENDS IN; Teeth Quantity: 57; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 14 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.