The Gear,internal, cataloged under National Stock Number 3020-01-201-4031, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-201-4031 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 15.3990 INCHES FIRST END IN |
| Teeth Quantity | 69 |
| Body Style | PLAIN, SOLID |
| Mounting Hole Type and Quantity | 16 PLAIN AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.5310 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SPUR |
| Hardness Rating | 58.0 ROCKWELL H MINIMUM AND 62.0 ROCKWELL H MAXIMUM OVERALL |
| Style Designator | SOLID BACK RING, PROTRUDING HUB, RECESSED HUB |
| Pitch Diameter | 13.8000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 16.4380 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Bolt Hole Circle Nominal Diameter | 15.4000 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 3.2500 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 |
|---|---|
| 13211E8703 | 5/2 Secondary reference U.S. Government activity |
| 13211E8703 | 3/9 Design control — primary reference Paccar Government Group Co Yarrow Bay Office Pk |
NSN 3020-01-201-4031 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-201-4031: Hub Nominal Diameter: 15.3990 INCHES FIRST END IN; Teeth Quantity: 69; Body Style: PLAIN, SOLID; Mounting Hole Type and Quantity: 16 PLAIN AXIALLY THROUGH BODY FIRST END. 17 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.