The Filter,recirculating, cataloged under National Stock Number 2940-01-606-8402, 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 Hdt Expeditionary Systems Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2940-01-606-8402 |
| Primary Part Number | 17-3-2459-1-SV |
| Item Name | Filter,recirculating |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Hdt Expeditionary Systems Inc |
| Status | ACTIVE |
| Material | ALUMINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 17-3-2459-1-SV PRIMARY | Hdt Expeditionary Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 313529 | 5/9 Secondary reference Hdt Expeditionary Systems Inc |
| 17-3-2459-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2940-01-606-8402 is a Filter,recirculating, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-606-8402 has 1 manufacturer part number on file: 17-3-2459-1-SV (Hdt Expeditionary Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-631-0134. Verify interchangeability with system specifications before substitution.
Key specifications for 17-3-2459-1-SV: Overall Height: 1.48 INCHES NOMINAL IN; Overall Length: 22.126 INCHES NOMINAL IN; Overall Width: 12.60 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: ASSEMBLY,FLITER,RFU. 1 specification is 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.
NSN 2940-01-606-8402 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.