The Gear,spur, cataloged under National Stock Number 3020-01-352-0071, 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 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-352-0071 |
| Primary Part Number | 5198311 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.499 INCHES FIRST END IN |
| Teeth Quantity | 113 |
| Surface Treatment Document and Classification | QQ-P-35 TYPE I FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.420 INCHES SECOND COUNTERBORE SECOND END IN |
| Counterbore Nominal Diameter | 1.093 INCHES FIRST COUNTERBORE SECOND END IN |
| Bore Style | W/COUNTERBORE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.456 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.3346 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | 1 GROOVE FIRST END |
| Nominal Outside Diameter | 1.358 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 15.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| First Groove Nominal Diameter | 0.468 INCHES FIRST END IN |
| Counterbore Nominal Depth | 0.080 INCHES SECOND COUNTERBORE SECOND END IN |
| Counterbore Nominal Depth | 0.140 INCHES FIRST COUNTERBORE SECOND END IN |
| First Groove Nominal Width | 0.039 INCHES FIRST END IN |
| Face Nominal Width | 0.234 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 |
NSN 3020-01-352-0071 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-352-0071 has 2 manufacturer part numbers on file: 1519725 (Lockheed Martin Corporation Div Rms), 5198311 (Naval Sea Systems Command).
Key specifications for 5198311: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.499 INCHES FIRST END IN; Teeth Quantity: 113; Surface Treatment Document and Classification: QQ-P-35 TYPE I FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 22 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.