The Gear,bevel, cataloged under National Stock Number 3020-00-294-9612, 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 Meritor Heavy Vehicle Systems, Llc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-294-9612 |
| Primary Part Number | A3889W179 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.638 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.625 INCHES FIRST END IN |
| Hub Nominal Diameter | 4.750 INCHES SECOND END IN |
| Teeth Quantity | 22 |
| Body Style | WEBBED, OFFSET, SOLID |
| Pitch Angle | 67.7500 DEGREES |
| Tooth Direction | LEFT |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.234 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.562 INCHES SECOND END IN |
| Teeth Type | SPIRAL |
| Nominal Overall Length | 2.375 INCHES IN |
| Style Designator | SIDE FACE, PROTRUDING HUBS |
| Pitch Diameter | 8.7300 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 9 BOTH ENDS |
| Nominal Outside Diameter | 7.7300 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 2.4600 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.750 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 |
|---|---|
| A3889W179 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| A3889W179 | 5/9 Secondary reference Duplex Div Warner and Swasey Co |
NSN 3020-00-294-9612 is a Gear,bevel, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-294-9612 has 1 manufacturer part number on file: A3889W179 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for A3889W179: Bore Nominal Diameter: 2.638 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.625 INCHES FIRST END IN; Hub Nominal Diameter: 4.750 INCHES SECOND END IN; Teeth Quantity: 22. 21 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.