The Filter Element,fluid, cataloged under National Stock Number 2940-01-394-1937, 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 Caterpillar Inc Div Caterpillar Defense. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Filter Element,fluid |
| FSC / FSG | 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft (FSG 29) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Wix Corp (CAGE 79396); Genuine Parts Company Div Automotive Parts Group, Dba Napa (CAGE 0HYJ6) |
| Parameter | Value |
|---|---|
| NSN | 2940-01-394-1937 |
| Primary Part Number | 4T3131 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4T3131 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 51167 PRIMARY | Wix Corp (USA) |
| 1167 | Genuine Parts Company Div Automotive Parts Group, Dba Napa (USA) |
| Reference | Meaning |
|---|---|
| 1167 | 5/9 Secondary reference National Automotive Parts Assn/napa/ |
NSN 2940-01-394-1937 is a Filter Element,fluid, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-394-1937 has 3 manufacturer part numbers on file: 4T3131 (Caterpillar Inc Div Caterpillar Defense), 51167 (Wix Corp), 1167 (Genuine Parts Company Div Automotive Parts Group, Dba Napa).
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.