The Filter,fluid, cataloged under National Stock Number 4330-01-421-8790, 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 Pti Technologies Inc.. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-421-8790 |
| Primary Part Number | 7590352-101 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Filtration Rating in Microns | 18.0 NOMINAL |
| First Intake Nominal Thread Size | 0.562 INCHES IN |
| First Intake Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Design Type | REUSABLE |
| Body Outside Diameter | 2.375 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 6.340 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL TUBE HEAD SIDE |
| First Intake Thread Class | 3B |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Operating Pressure | 85.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Differential Pressure | ERR-060 |
| Media for Which Designed | AIR |
| Material | ALUMINUM BODY |
| Material | ALUMINUM ALLOY SEDIMENT BOWL |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| 7590352-101 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 17B1B2546-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4330-01-421-8790 is a Filter,fluid, manufactured by Pti Technologies Inc., classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-421-8790 has 1 manufacturer part number on file: 7590352-101 (Pti Technologies Inc.).
Key specifications for 7590352-101: Filtration Rating in Microns: 18.0 NOMINAL; First Intake Nominal Thread Size: 0.562 INCHES IN; First Intake Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Design Type: REUSABLE. 19 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.