The Filter,fluid, cataloged under National Stock Number 4330-01-139-6281, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Gast Mfg Corp. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-139-6281 |
| Primary Part Number | AA925 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Gast Mfg Corp |
| Status | ACTIVE |
| First Intake Nominal Thread Size | 0.125 INCHES IN |
| First Intake Thread Series Designator | NPSF |
| Design Type | REUSABLE |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED INTERNAL PIPE TOP SIDE |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | GLASS SEDIMENT BOWL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| AA925 PRIMARY | Gast Mfg Corp (USA) |
NSN 4330-01-139-6281 is a Filter,fluid, manufactured by Gast Mfg Corp, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-139-6281 has 1 manufacturer part number on file: AA925 (Gast Mfg Corp).
Key specifications for AA925: First Intake Nominal Thread Size: 0.125 INCHES IN; First Intake Thread Series Designator: NPSF; Design Type: REUSABLE; First Intake Thread Direction: RIGHT-HAND. 11 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.