The Gear,internal, cataloged under National Stock Number 3020-01-030-9406, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-030-9406 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 354 |
| Body Style | WEBBED, SOLID |
| Mounting Hole Type and Quantity | 8 COUNTERSUNK AXIALLY THROUGH BODY FIRST END |
| Precision Classification | QUALITY NUMBER 11 |
| Mounting Hole Nominal Diameter | 0.1690 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 0.3700 INCHES IN |
| Style Designator | RECESSED RING |
| Material Document and Classification | QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.3750 INCHES MINIMUM AND 7.3780 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 8.5000 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Bolt Hole Circle Nominal Diameter | 7.7500 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Body Recess Nominal Diameter | 8.2515 INCHES FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.1200 INCHES FIRST END IN |
| Face Nominal Width | 0.2500 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 |
|---|---|
| 100507-1 | 5/9 Secondary reference Datron Systems Inc |
| 100507-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-01-030-9406 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5365-01-413-0292. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-030-9406: Teeth Quantity: 354; Body Style: WEBBED, SOLID; Mounting Hole Type and Quantity: 8 COUNTERSUNK AXIALLY THROUGH BODY FIRST END; Precision Classification: QUALITY NUMBER 11. 19 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.