The Gear,spur, cataloged under National Stock Number 3020-00-351-4342, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Viking Technologies, Ltd.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3020-00-351-4342 |
| Primary Part Number | 300509 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.125 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.625 INCHES FIRST END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 32 |
| Body Style | PLAIN, SOLID |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Nominal Overall Length | 1.812 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 1.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.125 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Face Nominal Width | 0.094 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 |
| Part Number | Manufacturer |
|---|---|
| 300509 PRIMARY | Viking Technologies, Ltd. (USA) |
NSN 3020-00-351-4342 is a Gear,spur, manufactured by Viking Technologies, Ltd., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-351-4342 has 1 manufacturer part number on file: 300509 (Viking Technologies, Ltd.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-366-7605. Verify interchangeability with system specifications before substitution.
Key specifications for 300509: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.125 INCHES SECOND END IN; Hub Nominal Diameter: 0.625 INCHES FIRST END IN; Backlash Designation: GRADE C. 15 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.