The Gear,helical, cataloged under National Stock Number 3020-01-103-3315, 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 Dana Off Highway Products, Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-103-3315 |
| Primary Part Number | 4203177 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Dana Off Highway Products, Llc |
| Status | ACTIVE |
| Hub Spline Quantity | 45 FIRST END |
| Helix Angle | 18.0000 DEGREES |
| Hub Nominal Diameter | 3.500 INCHES SECOND END IN |
| Teeth Quantity | 64 |
| Body Style | WEBBED, OFFSET, SOLID |
| Tooth Direction | LEFT |
| Nominal Distance Between Body Face and Protruding Hub End | 1.750 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.219 INCHES SECOND END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | EXTERNALLY SPLINED, INVOLUTE SPLINES FIRST END |
| Nominal Outside Diameter | 8.738 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.000 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 |
|---|---|
| 4203177 PRIMARY | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 236681 | 5/9 Secondary reference Clark Equipment Co |
| E114343 | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
NSN 3020-01-103-3315 is a Gear,helical, manufactured by Dana Off Highway Products, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-103-3315 has 1 manufacturer part number on file: 4203177 (Dana Off Highway Products, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-370-4329, 5306-01-661-2080. Verify interchangeability with system specifications before substitution.
Key specifications for 4203177: Hub Spline Quantity: 45 FIRST END; Helix Angle: 18.0000 DEGREES; Hub Nominal Diameter: 3.500 INCHES SECOND END IN; Teeth Quantity: 64. 16 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.