The Filter,fluid, cataloged under National Stock Number 4330-00-931-4666, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-00-931-4666 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Distance From Bottom of Body to Center of Inlet | 5.650 INCHES NOMINAL IN |
| Distance Between Mounting Hole Centers | 1.735 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 0.625 INCHES IN |
| First Intake Thread Series Designator | UNF |
| Design Type | REUSABLE |
| First Intake Thread Direction | RIGHT-HAND |
| Body Width | 2.325 INCHES NOMINAL IN |
| Body Height | 6.500 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL TUBE TOP SIDE |
| First Intake Thread Class | 3B |
| Style Designator | TEE TYPE (HYDRAULIC) |
| Mounting Hole Diameter | 0.265 INCHES NOMINAL IN |
| Filtering Element Quantity | 1 |
| Body Length | 2.375 INCHES NOMINAL IN |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | ALUMINUM ALLOY BODY |
| Material | ALUMINUM ALLOY SEDIMENT BOWL |
| Mounting Type | UNTHREADED HOLE SIDE NEAR TOP |
| 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 |
|---|---|
| 048700 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4330-00-931-4666 is a Filter,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): 6650-01-119-9522. Verify interchangeability with system specifications before substitution.
Key specifications for 4330-00-931-4666: Mounting Hole Quantity: 2; Distance From Bottom of Body to Center of Inlet: 5.650 INCHES NOMINAL IN; Distance Between Mounting Hole Centers: 1.735 INCHES NOMINAL IN; First Intake Nominal Thread Size: 0.625 INCHES IN. 20 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.