The Gear,spur, cataloged under National Stock Number 3020-01-320-8351, 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 Naval Sea Systems Command. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-320-8351 |
| Primary Part Number | 5186923-2 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.375 INCHES BOTH ENDS IN |
| Teeth Quantity | 220 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.340 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 6.8750 INCHES NOMINAL IN |
| Nominal Outside Diameter | 6.9370 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 5186923-2 PRIMARY | Naval Sea Systems Command (USA) |
| 5186923-2 | Superior Gear Inc Sub of Solar Turbine (USA) |
| Reference | Meaning |
|---|---|
| 5186923-2 | 5/9 Secondary reference Kosmo Gears |
| 5186923-2 | 5/9 Secondary reference Marino Enterprises, Inc. Dba Gear Technology Div Gear Technology |
NSN 3020-01-320-8351 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-320-8351 has 2 manufacturer part numbers on file: 5186923-2 (Naval Sea Systems Command), 5186923-2 (Superior Gear Inc Sub of Solar Turbine).
Key specifications for 5186923-2: Bore Nominal Diameter: 0.375 INCHES BOTH ENDS IN; Teeth Quantity: 220; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 10 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.