The Gear,helical, cataloged under National Stock Number 3020-01-438-0036, 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 Lake Shore Systems, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Gear,helical |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Lake Shore Systems, Inc. (CAGE 34712); Flender Corporation Dba Foreign Parent Is a Friedr Flender Ag Bocholt Germany. (CAGE 62681) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-438-0036 |
| Primary Part Number | 3534507 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 3534507 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 3534507 | Flender Corporation Dba Foreign Parent Is a Friedr Flender Ag Bocholt Germany. (USA) |
| Reference | Meaning |
|---|---|
| 5678014-SDN425 PC 402 | 5/9 Secondary reference Flender Corporation Dba Foreign Parent Is a Friedr Flender Ag Bocholt Germany. |
| 5678014 | D/9 Drawing number reference only Flender Corporation Dba Foreign Parent Is a Friedr Flender Ag Bocholt Germany. |
NSN 3020-01-438-0036 is a Gear,helical, manufactured by Lake Shore Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-438-0036 has 2 manufacturer part numbers on file: 3534507 (Lake Shore Systems, Inc.), 3534507 (Flender Corporation Dba Foreign Parent Is a Friedr Flender Ag Bocholt Germany.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-438-0739. Verify interchangeability with system specifications before substitution.
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.