The Gear,helical, cataloged under National Stock Number 3020-01-256-2589, 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 Alfa Laval Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-256-2589 |
| Primary Part Number | 7123400 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Alfa Laval Inc |
| Status | ACTIVE |
| Material | COPPER ALLOY SLEEVE |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 7123400 PRIMARY | Alfa Laval Inc (USA) |
| Reference | Meaning |
|---|---|
| 71234 | 5/9 Secondary reference Alfa Laval Inc |
NSN 3020-01-256-2589 is a Gear,helical, manufactured by Alfa Laval Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-256-2589 has 1 manufacturer part number on file: 7123400 (Alfa Laval Inc).
2 possible matches (shared part number, not a government interchangeability claim): 2805-01-326-9195, 1680-01-619-2120. Verify interchangeability with system specifications before substitution.
Key specifications for 7123400: Special Features: OVERALL LENGTH 75.000 MM MM; End Item Identification: INTEGRAL PART OF FEED PUMP ON MODEL MAPX210T CENTRIFUGAL FUEL PURIFIER USED ABOARD 400 FT C.G. VESSELS FT; Material: COPPER ALLOY SLEEVE; Material: STEEL CORROSION RESISTING TEETH. 2 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.