The Gear,helical, cataloged under National Stock Number 3020-00-262-8938, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-262-8938 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.188 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.875 INCHES BOTH ENDS IN |
| Helix Angle | 30.0000 DEGREES |
| Hub Nominal Diameter | 2.125 INCHES FIRST END IN |
| Teeth Quantity | 70 |
| Body Style | WEBBED, OFFSET, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.625 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Nominal Overall Length | 1.375 INCHES IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | QQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.0000 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 7.1670 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.531 INCHES BOTH ENDS IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY 903 OVERALL |
| Body Recess Nominal Depth | 0.250 INCHES SECOND END IN |
| Face Nominal Width | 0.750 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 |
| Reference | Meaning |
|---|---|
| 6101 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-619UPC630 | 5/9 Secondary reference U.S. Government activity |
| D15-619PPC630 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-619PPC630 | 3/2 Design control — primary reference U.S. Government activity |
| D15-619BPC630 | 5/9 Secondary reference U.S. Government activity |
| D15-619TPC630 | 3/2 Design control — primary reference U.S. Government activity |
| D15-619BPC630 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-619TPC630 | 5/9 Secondary reference U.S. Government activity |
| 6101 | 5/9 Secondary reference U.S. Government activity |
| D15-619UPC630 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-619BPC630 | 5/2 Secondary reference U.S. Government activity |
| D15-619UPC630 | 3/2 Design control — primary reference U.S. Government activity |
| 6101 | 3/2 Design control — primary reference U.S. Government activity |
| D15-619TPC630 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-619PPC630 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-262-8938 is a Gear,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-262-8938: Keyway Nominal Width: 0.188 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.875 INCHES BOTH ENDS IN; Helix Angle: 30.0000 DEGREES; Hub Nominal Diameter: 2.125 INCHES FIRST END IN. 22 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.