The Gear,helical, cataloged under National Stock Number 3020-01-327-8109, 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 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-327-8109 |
| Primary Part Number | 5821023 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.1875 INCHES SECOND END IN |
| Bore Nominal Diameter | 0.1875 INCHES FIRST END IN |
| Teeth Quantity | 56 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 0.406 INCHES SECOND COUNTERBORE SECOND END IN |
| Counterbore Nominal Diameter | 0.500 INCHES FIRST COUNTERBORE SECOND END IN |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN FIRST END |
| Bore Style | W/STEPPED COUNTERBORE SECOND END |
| Teeth Type | SINGLE HELIX |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Tooth Form | STUB |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP E4340 OVERALL |
| Counterbore Nominal Depth | 0.045 INCHES FIRST COUNTERBORE SECOND END IN |
| Counterbore Nominal Depth | 0.275 INCHES SECOND COUNTERBORE SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5821023 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3020-01-327-8109 is a Gear,helical, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-327-8109 has 1 manufacturer part number on file: 5821023 (Naval Sea Systems Command).
Key specifications for 5821023: Bore Nominal Diameter: 0.1875 INCHES SECOND END IN; Bore Nominal Diameter: 0.1875 INCHES FIRST END IN; Teeth Quantity: 56; Body Style: WEBBED, OFFSET, SOLID. 16 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.
NSN 3020-01-327-8109 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.