The Cover,fluid Filter, cataloged under National Stock Number 2940-01-358-7079, 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. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-358-7079 |
| Primary Part Number | 4W8459 |
| Item Name | Cover,fluid Filter |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Length | 168.5 MILLIMETERS NOMINAL MM |
| Distance Between Holes Along Length | 141.5 MILLIMETERS NOMINAL MM |
| Mounting Hole Type and Quantity | 2 PLAIN |
| EAR Radius | 12.0 MILLIMETERS MINIMUM AND 15.0 MILLIMETERS MAXIMUM MM |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | FLAT |
| Body Radius | 61.0 MILLIMETERS NOMINAL MM |
| Fluid Filter Element Retainer | NOT INCLUDED |
| Peripheral Shape Style | DIAMOND |
| Width | 122.0 MILLIMETERS NOMINAL MM |
| Material | STEEL |
| Hole Diameter | 10.5 MILLIMETERS NOMINAL MM |
| Attachment Method | BOLTED |
| Body Thickness | 30.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 4W8459 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 2940-01-358-7079 is a Cover,fluid Filter, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-358-7079 has 1 manufacturer part number on file: 4W8459 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4W8459: Length: 168.5 MILLIMETERS NOMINAL MM; Distance Between Holes Along Length: 141.5 MILLIMETERS NOMINAL MM; Mounting Hole Type and Quantity: 2 PLAIN; EAR Radius: 12.0 MILLIMETERS MINIMUM AND 15.0 MILLIMETERS MAXIMUM MM. 14 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.