The Filter Element,fluid, cataloged under National Stock Number 4330-01-421-9609, 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 6 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 | 4330-01-421-9609 |
| Primary Part Number | 7590403-001 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Body Diameter | 1.125 INCHES NOMINAL IN |
| Body Overall Length | 4.250 INCHES MINIMUM AND 4.310 INCHES MAXIMUM IN |
| Filtration Rating in Microns | 18.0 NOMINAL |
| Flow Direction | OUTSIDE IN |
| Media for Which Designed | AIR |
| Material | ALUMINUM ALLOY 3003 FILTERING MEDIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7590403-001 PRIMARY | Pti Technologies Inc. (USA) |
NSN 4330-01-421-9609 is a Filter Element,fluid, manufactured by Pti Technologies Inc., classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-421-9609 has 1 manufacturer part number on file: 7590403-001 (Pti Technologies Inc.).
Key specifications for 7590403-001: Body Diameter: 1.125 INCHES NOMINAL IN; Body Overall Length: 4.250 INCHES MINIMUM AND 4.310 INCHES MAXIMUM IN; Filtration Rating in Microns: 18.0 NOMINAL; Flow Direction: OUTSIDE IN. 6 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.
NSN 4330-01-421-9609 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.