The Filter Element,intake Air Cleane, cataloged under National Stock Number 2940-01-424-4689, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. The manufacturer of record is K & N Engineering, Inc. Dba Aem Induction. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-424-4689 |
| Primary Part Number | E-3657 |
| Item Name | Filter Element,intake Air Cleane |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | K & N Engineering, Inc. Dba Aem Induction |
| Status | ACTIVE |
| Body Diameter | 7.000 INCHES NOMINAL IN |
| Body Overall Length | 9.000 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL W/OUT CONTAINER |
| 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 |
|---|---|
| WI-6099 | Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc (USA) |
| E-3657 PRIMARY | K & N Engineering, Inc. Dba Aem Induction (USA) |
| Reference | Meaning |
|---|---|
| 2940PL1287489 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 2940-01-424-4689 is a Filter Element,intake Air Cleane, manufactured by K & N Engineering, Inc. Dba Aem Induction, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-424-4689 has 2 manufacturer part numbers on file: WI-6099 (Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc), E-3657 (K & N Engineering, Inc. Dba Aem Induction).
Key specifications for E-3657: Body Diameter: 7.000 INCHES NOMINAL IN; Body Overall Length: 9.000 INCHES NOMINAL IN; Style Designator: CYLINDRICAL W/OUT CONTAINER; End Item Identification: GENERATOR ENGINE WALKER ENGINEERING ENTP MODELS KWR-6149 AND KWI-6149. 3 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.