The Filter,fluid, cataloged under National Stock Number 2940-01-391-3984, 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 Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-391-3984 |
| Primary Part Number | KW4000-871-2 |
| Item Name | Filter,fluid |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc |
| Status | ACTIVE |
| First Discharge Connection Type | UNTHREADED EXTERNAL HOSE SIDE |
| Design Type | LIMITED |
| Body Outside Diameter | 7.500 INCHES NOMINAL IN |
| Style Designator | SUCTION TYPE BLUNT END |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | NOT IDENTICAL |
| Media for Which Designed | AIR |
| Mounting Type | OUTLET CONNECTION SIDE |
| 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 |
|---|---|
| KW4000-871-2 PRIMARY | Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc (USA) |
| Reference | Meaning |
|---|---|
| AJF7408 | 5/9 Secondary reference Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc |
| KW5000-871-2 | 5/9 Secondary reference Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc |
NSN 2940-01-391-3984 is a Filter,fluid, manufactured by Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-391-3984 has 1 manufacturer part number on file: KW4000-871-2 (Walker Design, Inc. Dba Walker Design Inc Div Walker Engineering Enterprises, Inc).
Key specifications for KW4000-871-2: First Discharge Connection Type: UNTHREADED EXTERNAL HOSE SIDE; Design Type: LIMITED; Body Outside Diameter: 7.500 INCHES NOMINAL IN; Style Designator: SUCTION TYPE BLUNT END. 9 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.