The Filter Element,fluid, cataloged under National Stock Number 2940-01-172-4701, 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 Amz Alabama Inc.. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Filter Element,fluid |
| FSC / FSG | 2940 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft (FSG 29) |
| Manufacturers | Hagglunds Vehicle Gmbh (CAGE C8716); Bae Systems Hagglunds Aktiebolag (CAGE AC90N); Amz Alabama Inc. (CAGE 076M6) |
| Parameter | Value |
|---|---|
| NSN | 2940-01-172-4701 |
| Primary Part Number | 91526-991 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Amz Alabama Inc. |
| 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 |
|---|---|
| 2590 4161-601 | Hagglunds Vehicle Gmbh (DEU) |
| 25904161-601 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 25904161-601 | Amz Alabama Inc. (USA) |
| 91526-991 PRIMARY | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| HC9800FKT4H | 5/9 Secondary reference Pall Corporation |
| 25904161-601 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 445-9519 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 91526-991 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 91526-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
NSN 2940-01-172-4701 is a Filter Element,fluid, manufactured by Amz Alabama Inc., classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-172-4701 has 4 manufacturer part numbers on file: 2590 4161-601 (Hagglunds Vehicle Gmbh), 25904161-601 (Bae Systems Hagglunds Aktiebolag), 25904161-601 (Amz Alabama Inc.), 91526-991 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-229-7708. Verify interchangeability with system specifications before substitution.
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.