The Gear,drive Motion, cataloged under National Stock Number 3020-01-390-6591, 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 J. W. Marine Equipment, Inc. Dba Marine Equipment Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-390-6591 |
| Primary Part Number | A3.1920 |
| Item Name | Gear,drive Motion |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | J. W. Marine Equipment, Inc. Dba Marine Equipment Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 39 TEETH |
| 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 |
|---|---|
| A3.1920 PRIMARY | J. W. Marine Equipment, Inc. Dba Marine Equipment Inc (USA) |
| A0.1163 ITEM 50 | J. W. Marine Equipment, Inc. Dba Marine Equipment Inc (USA) |
| Reference | Meaning |
|---|---|
| AO.1163 ITEM 50 | 5/9 Secondary reference Davit Intl |
| A0.1163 ITEM 50 | 5/9 Secondary reference Davit Intl |
NSN 3020-01-390-6591 is a Gear,drive Motion, manufactured by J. W. Marine Equipment, Inc. Dba Marine Equipment Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-390-6591 has 2 manufacturer part numbers on file: A3.1920 (J. W. Marine Equipment, Inc. Dba Marine Equipment Inc), A0.1163 ITEM 50 (J. W. Marine Equipment, Inc. Dba Marine Equipment Inc).
Key specifications for A3.1920: General Characteristics Item Description: 39 TEETH. 1 specification is 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.