The Filter Body,intake Air Cleaner, cataloged under National Stock Number 2940-01-571-1632, 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 Maradyne Corporation. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Filter Body,intake Air Cleaner |
| FSC / FSG | 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft (FSG 29) |
| Manufacturers | Maradyne Corporation (CAGE 0DBY7); Oshkosh Defense Llc (CAGE 75Q65) |
| Parameter | Value |
|---|---|
| NSN | 2940-01-571-1632 |
| Primary Part Number | L4B9AK090 |
| Item Name | Filter Body,intake Air Cleaner |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Maradyne Corporation |
| 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 |
|---|---|
| L4B9AK090 PRIMARY | Maradyne Corporation (USA) |
| 16KP649 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| L4B9AK090 | 5/9 Secondary reference Greenlees Filter Llc |
| 16KP649 | 5/9 Secondary reference Oshkosh Corp |
| L4B9BK090 | 5/9 Secondary reference Greenlees Filter Llc |
| L218D2ZCLAMP | D/9 Drawing number reference only Greenlees Filter Llc |
NSN 2940-01-571-1632 is a Filter Body,intake Air Cleaner, manufactured by Maradyne Corporation, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-571-1632 has 2 manufacturer part numbers on file: L4B9AK090 (Maradyne Corporation), 16KP649 (Oshkosh Defense Llc).
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.