The Filter Element,fluid, cataloged under National Stock Number 4330-00-043-3974, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-00-043-3974 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Status | ACTIVE |
| Body Diameter | 1.285 INCHES NOMINAL IN |
| Body Overall Length | 5.060 INCHES NOMINAL IN |
| Flow Direction | INSIDE OUT |
| Design Type | REUSABLE |
| Style Designator | CYLINDRICAL W/ CONTAINER (RIGID) |
| Body Inside Diameter | 0.950 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL FILTERING MEDIUM |
| Material | METAL CONTAINER/CARTRIDGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| F971 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4330-00-043-3974 is a Filter Element,fluid, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-537-4491. Verify interchangeability with system specifications before substitution.
Key specifications for 4330-00-043-3974: Body Diameter: 1.285 INCHES NOMINAL IN; Body Overall Length: 5.060 INCHES NOMINAL IN; Flow Direction: INSIDE OUT; Design Type: REUSABLE. 9 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.