The Gear,helical, cataloged under National Stock Number 3020-00-293-4023, 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22 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-293-4023 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.375 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.050 INCHES BOTH ENDS IN |
| Helix Angle | 23.2000 DEGREES |
| Hub Nominal Diameter | 1.875 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.875 INCHES FIRST END IN |
| Teeth Quantity | 16 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES BOTH ENDS IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 14.0 ROCKWELL C NOMINAL OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-B-671,CLASS B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.4870 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 2.7090 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.666 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 1.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B3181836REVA | 5/2 Secondary reference U.S. Government activity |
| CAFB8695F1 | 5/9 Secondary reference U.S. Government activity |
| NAFB5514G | 5/9 Secondary reference U.S. Government activity |
| NAFB8695F | 5/9 Secondary reference U.S. Government activity |
| CAFB8695F | 5/9 Secondary reference U.S. Government activity |
| 16200761 | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
| 16200761 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-293-4023 is a Gear,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-293-4023: Keyway Nominal Width: 0.375 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.050 INCHES BOTH ENDS IN; Helix Angle: 23.2000 DEGREES; Hub Nominal Diameter: 1.875 INCHES SECOND 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.
NSN 3020-00-293-4023 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.