The Filter Assembly,fluid, cataloged under National Stock Number 4330-01-388-1909, 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9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-388-1909 |
| Item Name | Filter Assembly,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Status | ACTIVE |
| First Intake Nominal Thread Size | 0.500 INCHES IN |
| First Intake Thread Series Designator | NPT |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED EXTERNAL PIPE HEAD SIDE |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | AIR |
| Unit Quantity | 2 |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION HEAD SIDE |
| 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 |
|---|---|
| A100221 | 3/9 Design control — primary reference Finish Thompson, Inc. |
NSN 4330-01-388-1909 is a Filter Assembly,fluid, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
Key specifications for 4330-01-388-1909: First Intake Nominal Thread Size: 0.500 INCHES IN; First Intake Thread Series Designator: NPT; First Intake Thread Direction: RIGHT-HAND; First Intake Connection Type: THREADED EXTERNAL PIPE HEAD SIDE. 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.