The Gear,worm Wheel, cataloged under National Stock Number 3020-01-147-3034, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-147-3034 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Helix Angle | 21.7998 DEGREES |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Face Type | CONCAVE |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.2500 INCHES NOMINAL IN |
| Nominal Outside Diameter | 1.420 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Mating Thread Lead Quantity | 4 |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.310 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B39-1177P2 | 3/9 Design control — primary reference Aerodyne Products Corp |
| B39-1177 | D/9 Drawing number reference only Aerodyne Products Corp |
NSN 3020-01-147-3034 is a Gear,worm Wheel, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-147-3034: Helix Angle: 21.7998 DEGREES; Teeth Quantity: 20; Body Style: PLAIN, SOLID; Face Type: CONCAVE. 11 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 3020-01-147-3034 has DEMIL Code B. 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.