The Gear,helical, cataloged under National Stock Number 3020-00-090-5840, 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 Asrc Federal Facilities Logistics, Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-090-5840 |
| Primary Part Number | 01770-0183 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Asrc Federal Facilities Logistics, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.1645 INCHES BOTH ENDS IN |
| Helix Angle | 23.2158 DEGREES |
| Backlash Designation | GRADE A |
| Teeth Quantity | 22 |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL |
| Pitch Diameter | 3.1420 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 3.359 INCHES IN |
| Pressure Angle | 18.3666 DEGREES |
| Body Recess Nominal Depth | 0.328 INCHES SECOND END IN |
| Body Recess Nominal Depth | 1.0255 INCHES FIRST END IN |
| Face Nominal Width | 1.531 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 |
|---|---|
| 01770-0183 PRIMARY | Asrc Federal Facilities Logistics, Llc (USA) |
| 208500 | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 01770-0183 | 5/9 Secondary reference U.S. Government activity |
| 208500 | 5/9 Secondary reference Clark Equipment Co |
NSN 3020-00-090-5840 is a Gear,helical, manufactured by Asrc Federal Facilities Logistics, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-090-5840 has 2 manufacturer part numbers on file: 01770-0183 (Asrc Federal Facilities Logistics, Llc), 208500 (Dana Off Highway Products, Llc).
Key specifications for 01770-0183: Bore Nominal Diameter: 2.1645 INCHES BOTH ENDS IN; Helix Angle: 23.2158 DEGREES; Backlash Designation: GRADE A; Teeth Quantity: 22. 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.