The Gear,helical, cataloged under National Stock Number 3020-00-679-8062, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-679-8062 |
| Primary Part Number | 10861811 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Keyway Nominal Width | 0.190 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.562 INCHES BOTH ENDS IN |
| Helix Angle | 30.0000 DEGREES |
| Teeth Quantity | 30 |
| Body Style | WEBBED, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS, RECESSED BODY |
| Tooth Form | STANDARD |
| Features Provided | CASEHARDENED |
| Nominal Outside Diameter | 3.6570 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.897 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Body Recess Nominal Depth | 0.450 INCHES BOTH ENDS IN |
| Face Nominal Width | 0.878 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 |
|---|---|
| 10861811 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| TG3507 | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| 1851996 PRIMARY | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| Reference | Meaning |
|---|---|
| 221-3507 | 5/9 Secondary reference Spx Corp |
| 221-3507 | 5/9 Secondary reference Bosch Automotive Service Solutions Inc. |
NSN 3020-00-679-8062 is a Gear,helical, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-679-8062 has 3 manufacturer part numbers on file: 10861811 (U S Army Tank Automotive Command Amsta-Im-Mm), TG3507 (Trw Inc Trw Intl Trade Government Sales Dept), 1851996 (Chrysler Realty Company Llc Dba Daimler Chrysler).
Key specifications for 10861811: Keyway Nominal Width: 0.190 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.562 INCHES BOTH ENDS IN; Helix Angle: 30.0000 DEGREES; Teeth Quantity: 30. 17 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.