The Filter Element,fluid, cataloged under National Stock Number 2940-01-471-2589, 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 Harvard Corporation. Government technical data includes 10 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. 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 | 2940-01-471-2589 |
| Primary Part Number | 0673 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Harvard Corporation |
| Status | ACTIVE |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| Filtration Rating in Microns | 1.0 NOMINAL |
| Flow Direction | OUTSIDE IN |
| Design Type | NONREUSABLE |
| Body Outside Diameter | 7.500 INCHES NOMINAL IN |
| Temp Rating | 200.0 FAHRENHEIT MAXIMUM DEGF |
| Body Height | 19.750 INCHES NOMINAL IN |
| Style Designator | ELL TYPE (HYDRAULIC) |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | STEEL BODY |
| 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 |
|---|---|
| 0673 PRIMARY | Harvard Corporation (USA) |
NSN 2940-01-471-2589 is a Filter Element,fluid, manufactured by Harvard Corporation, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-471-2589 has 1 manufacturer part number on file: 0673 (Harvard Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-681-6210. Verify interchangeability with system specifications before substitution.
Key specifications for 0673: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Filtration Rating in Microns: 1.0 NOMINAL; Flow Direction: OUTSIDE IN; Design Type: NONREUSABLE. 10 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.