The Gear,worm Wheel, cataloged under National Stock Number 3020-00-342-1158, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-342-1158 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.134 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.874 INCHES BOTH ENDS IN |
| Helix Angle | 14.9331 DEGREES |
| Hub Nominal Diameter | 1.125 INCHES BOTH ENDS IN |
| Teeth Quantity | 29 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.940 INCHES BOTH ENDS IN |
| Throat Nominal Radius | 0.271 INCHES IN |
| Face Type | CONCAVE |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AN-B-16 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.2080 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 1.354 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.465 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 0.500 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 |
|---|---|
| 2381351 | 5/9 Secondary reference The Boeing Company |
| 2381351 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-342-1158 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-342-1158: Keyway Nominal Width: 0.134 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.874 INCHES BOTH ENDS IN; Helix Angle: 14.9331 DEGREES; Hub Nominal Diameter: 1.125 INCHES BOTH ENDS 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.