The Gear,helical, cataloged under National Stock Number 3020-00-293-4311, 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 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-293-4311 |
| Primary Part Number | 01770-0064 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Asrc Federal Facilities Logistics, Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.314 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.750 INCHES BOTH ENDS IN |
| Helix Angle | 23.2158 DEGREES |
| Nominal Distance Between Body Face and Recessed Hub End | 0.623 INCHES SECOND END IN |
| Teeth Quantity | 36 |
| Body Style | WEBBED, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.1145 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Pitch Diameter | 5.2120 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 5.4290 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.952 INCHES BOTH ENDS IN |
| Pressure Angle | 18.3700 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.062 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 |
|---|---|
| 01770-0064 PRIMARY | Asrc Federal Facilities Logistics, Llc (USA) |
| Reference | Meaning |
|---|---|
| 01770-0064 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-293-4311 is a Gear,helical, manufactured by Asrc Federal Facilities Logistics, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-293-4311 has 1 manufacturer part number on file: 01770-0064 (Asrc Federal Facilities Logistics, Llc).
Key specifications for 01770-0064: Keyway Nominal Width: 0.314 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN; Helix Angle: 23.2158 DEGREES; Nominal Distance Between Body Face and Recessed Hub End: 0.623 INCHES SECOND END IN. 20 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.