The Cap,air Cleaner Intake Pipe, cataloged under National Stock Number 2940-01-375-1634, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-375-1634 |
| Primary Part Number | L-541B54K090 |
| Item Name | Cap,air Cleaner Intake Pipe |
| 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 |
|---|---|
| L-541B54K090 PRIMARY | Maradyne Corporation (USA) |
| 2HP746 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| L-541B54K090 | 5/9 Secondary reference Greenlees Filter Llc |
| 2HP746 | 5/9 Secondary reference Oshkosh Corp |
| L-541B54K090 | 5/9 Secondary reference United Air Filter, Inc. |
NSN 2940-01-375-1634 is a Cap,air Cleaner Intake Pipe, manufactured by Maradyne Corporation, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-375-1634 has 2 manufacturer part numbers on file: L-541B54K090 (Maradyne Corporation), 2HP746 (Oshkosh Defense Llc).
Key specifications for L-541B54K090: Overall Height: 6.250 INCHES NOMINAL IN; Special Features: W/CLAMP; ASPIRATOR CUP ASSEMBLY; End Item Identification: 2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM). 0 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.