The Gear,spur, cataloged under National Stock Number 3020-01-147-4612, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-147-4612 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Backlash Designation | GRADE E |
| Teeth Quantity | 38 |
| Body Style | PLAIN, SOLID |
| Precision Classification | QUALITY NUMBER 12 |
| Nominal Overall Length | 0.4060 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.5835 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.662 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.1800 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 |
|---|---|
| 172423 | 3/9 Design control — primary reference Edo |
NSN 3020-01-147-4612 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3910-01-224-9012. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-147-4612: Backlash Designation: GRADE E; Teeth Quantity: 38; Body Style: PLAIN, SOLID; Precision Classification: QUALITY NUMBER 12. 12 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.