The Gear Assembly,speed Decreaser, cataloged under National Stock Number 3010-01-290-0399, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Fairfield Manufacturing Company, Inc. Dba Dana Fairfield. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-290-0399 |
| Primary Part Number | W3C50Z4-54XB |
| Item Name | Gear Assembly,speed Decreaser |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Fairfield Manufacturing Company, Inc. Dba Dana Fairfield |
| 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 |
|---|---|
| W3C50Z4-54XB PRIMARY | Fairfield Manufacturing Company, Inc. Dba Dana Fairfield (USA) |
| 6098098 MFG PN W3C50Z4-54XB | Fairfield Manufacturing Company, Inc. Dba Dana Fairfield (USA) |
| Reference | Meaning |
|---|---|
| 19-WX-49746 | 5/9 Secondary reference Fairfield Manufacturing Company, Inc. Dba Dana Fairfield |
| 2A8-03361 | 5/9 Secondary reference Lake Shore Systems, Inc. |
| 6098098 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6098098 MFG PN W3C50Z4-54XB | 5/9 Secondary reference Kraft Fluid Systems, Inc. |
NSN 3010-01-290-0399 is a Gear Assembly,speed Decreaser, manufactured by Fairfield Manufacturing Company, Inc. Dba Dana Fairfield, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-290-0399 has 2 manufacturer part numbers on file: W3C50Z4-54XB (Fairfield Manufacturing Company, Inc. Dba Dana Fairfield), 6098098 MFG PN W3C50Z4-54XB (Fairfield Manufacturing Company, Inc. Dba Dana Fairfield).
Key specifications for W3C50Z4-54XB: End Item Identification: VEHICLE HANDLING SYSTEM. 0 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.