The Gear,helical, cataloged under National Stock Number 3020-00-385-9486, 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 Siemens Energy, Inc.. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 38 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-385-9486 |
| Primary Part Number | G7613PC71 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Helix Angle | 17.0000 DEGREES |
| Hub Nominal Diameter | 1.249 INCHES SECOND END IN |
| Teeth Quantity | 18 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Nominal Distance Between Body Face and Protruding Hub End | 2.000 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.400 INCHES SECOND END IN |
| First Step Nominal Length | 1.125 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 2.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.249 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 0.875 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.210 INCHES IN |
| End Nominal Diameter | 0.749 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 1.250 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 |
|---|---|
| G7613PC71 | Siemens Energy, Inc. (USA) |
| G6765PC71 | Siemens Energy, Inc. (USA) |
| G5957PC83 | Siemens Energy, Inc. (USA) |
| G7641PC71 | Siemens Energy, Inc. (USA) |
| G6701PC71 | Siemens Energy, Inc. (USA) |
| G6702PC83 | Siemens Energy, Inc. (USA) |
| G6726PC83 | Siemens Energy, Inc. (USA) |
| G6682PC83 | Siemens Energy, Inc. (USA) |
| G6708PC83 | Siemens Energy, Inc. (USA) |
| G6647PC83 | Siemens Energy, Inc. (USA) |
| G6721PC83 | Siemens Energy, Inc. (USA) |
| G7689PC71 | Siemens Energy, Inc. (USA) |
| G6752PC83 | Siemens Energy, Inc. (USA) |
| G7672PC71 | Siemens Energy, Inc. (USA) |
| G9667PC83 | Siemens Energy, Inc. (USA) |
| G6628PC83 | Siemens Energy, Inc. (USA) |
| G6663PC71 | Siemens Energy, Inc. (USA) |
| G7769PC83 | Siemens Energy, Inc. (USA) |
| G6653PC83 | Siemens Energy, Inc. (USA) |
| G7635PC71 | Siemens Energy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| G9661PC83 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G7983PC83 | 5/9 Secondary reference Siemens Energy, Inc. |
| G7939PC83 | 5/9 Secondary reference Siemens Energy, Inc. |
| G9718PC83 | 5/9 Secondary reference Siemens Energy, Inc. |
| W97AS | 5/9 Secondary reference Siemens Energy, Inc. |
| W97AS | 3/9 Design control — primary reference Imo Industries Inc Delroyd Worm Gear Div |
| G9661PC83 | 5/9 Secondary reference Siemens Energy, Inc. |
| G7619PC71 | 5/9 Secondary reference Siemens Energy, Inc. |
| G7619PC71 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G7939PC83 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
| G9724PC83 | 5/9 Secondary reference Siemens Energy, Inc. |
| G7983PC83 | 5/9 Secondary reference Imo Industries Inc Delroyd Worm Gear Div |
NSN 3020-00-385-9486 is a Gear,helical, manufactured by Siemens Energy, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-385-9486 has 38 manufacturer part numbers on file: G7613PC71 (Siemens Energy, Inc.), G6765PC71 (Siemens Energy, Inc.), G5957PC83 (Siemens Energy, Inc.), G7641PC71 (Siemens Energy, Inc.), G6701PC71 (Siemens Energy, Inc.) and 33 more.
Key specifications for G7613PC71: Helix Angle: 17.0000 DEGREES; Hub Nominal Diameter: 1.249 INCHES SECOND END IN; Teeth Quantity: 18; Body Style: PLAIN, SOLID. 21 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.