The Gear,helical, cataloged under National Stock Number 3020-00-339-4527, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 50 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-339-4527 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.4995 INCHES FIRST END IN |
| Helix Angle | 5.7165 DEGREES |
| Teeth Quantity | 50 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS |
| Pitch Diameter | 3.1250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 3.2500 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 0.375 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 |
|---|---|
| CL55S61-37PC9 | 5/9 Secondary reference Naval Sea Systems Command |
| WW8453313PC12 | 5/9 Secondary reference General Electric Company |
| 134B230AA | C/1 Advisory reference — outside the item-of-supply concept General Electric Co Naval and Drive Turbine Systems Dept |
| DD445S6100-39ALT1PC9 | 5/9 Secondary reference U.S. Government activity |
| DD692S6100-113ALT4PC12 | 5/9 Secondary reference Naval Sea Systems Command |
| W6680739SH1PC9 | 5/9 Secondary reference General Electric Company |
| CA68S6100-78PC9 | 5/9 Secondary reference U.S. Government activity |
| 134B230AA1 | 5/9 Secondary reference General Electric Company |
| WW8453365SH2PC87 | 5/9 Secondary reference General Electric Company |
| AV7S61-95PC9 | 5/9 Secondary reference U.S. Government activity |
| 134B23AA-001 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| WW6664268PC149 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| DD445S6100-38ALT1PC9 | 5/9 Secondary reference Naval Sea Systems Command |
| WW5599123PC9 | 5/9 Secondary reference General Electric Company |
| WW8453365PC87 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| 5545297-1 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| WW8453365SH2PC87 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| K4834256-2 | 5/9 Secondary reference General Electric Company |
| WW6665747PC9 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| DD692S6100-113ALT4PC12 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-339-4527 is a Gear,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-339-4527: Bore Nominal Diameter: 0.4995 INCHES FIRST END IN; Helix Angle: 5.7165 DEGREES; Teeth Quantity: 50; Body Style: PLAIN, SOLID. 14 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.