The Gear,helical, cataloged under National Stock Number 3020-00-734-6763, 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 25 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-734-6763 |
| Primary Part Number | 3892N1210 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.376 INCHES SECOND END IN |
| Bore Nominal Diameter | 4.505 INCHES FIRST END IN |
| Helix Angle | 17.5447 DEGREES |
| Hub Nominal Diameter | 5.325 INCHES FIRST END IN |
| Teeth Quantity | 37 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 3.951 INCHES SECOND END IN |
| Counterbore Nominal Diameter | 4.195 INCHES FIRST END IN |
| Tooth Direction | LEFT |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.118 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Nominal Overall Length | 3.618 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 7.5170 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 34 BOTH ENDS |
| Nominal Outside Diameter | 7.912 INCHES IN |
| Pressure Angle | 18.2980 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.828 INCHES SECOND END IN |
| Counterbore Nominal Depth | 0.791 INCHES FIRST END IN |
| Spline Pitch Diameter | 4.2500 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 2.500 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 |
|---|---|
| 7346763 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 3892N1210 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| KC5299 | 5/9 Secondary reference Diamond Reo Truck Co |
| 3892N1210 | 5/9 Secondary reference Spalla Inc |
| 98992R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 98992R1 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-00-734-6763 is a Gear,helical, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-734-6763 has 2 manufacturer part numbers on file: 7346763 (U S Army Tank Automotive Command Amsta-Im-Mm), 3892N1210 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 3892N1210: Bore Nominal Diameter: 3.376 INCHES SECOND END IN; Bore Nominal Diameter: 4.505 INCHES FIRST END IN; Helix Angle: 17.5447 DEGREES; Hub Nominal Diameter: 5.325 INCHES FIRST END IN. 25 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.