The Gear,internal, cataloged under National Stock Number 3020-01-240-3128, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-240-3128 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 5.984 INCHES BOTH ENDS IN |
| Teeth Quantity | 69 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 4 COUNTERBORED AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.281 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 1.812 INCHES IN |
| Style Designator | SOLID BACK RING, HUBLESS |
| Pitch Diameter | 8.6250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 9.984 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | IRON CAST OVERALL |
| Bolt Hole Circle Nominal Diameter | 7.240 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.422 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 |
|---|---|
| 1061111 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-240-3128 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-240-3128: Bore Nominal Diameter: 5.984 INCHES BOTH ENDS IN; Teeth Quantity: 69; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 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.