The Filter Element,fluid, cataloged under National Stock Number 4330-01-090-4903, 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 Pall Aeropower Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4330-01-090-4903 |
| Primary Part Number | AC-9999F-UN12Z |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 1.768 INCHES NOMINAL IN |
| Body Overall Length | 4.438 INCHES NOMINAL IN |
| Filtration Rating in Microns | 12.0 ABSOLUTE AND 2.0 NOMINAL |
| Flow Direction | OUTSIDE IN |
| Design Type | LIMITED |
| Temp Rating | -20.0 FAHRENHEIT NOMINAL AND 275.0 FAHRENHEIT NOMINAL DEGF |
| Style Designator | CYLINDRICAL W/ CONTAINER (RIGID) |
| Body Inside Diameter | 0.975 INCHES NOMINAL IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | ALUMINUM ALLOY CONTAINER/CARTRIDGE |
| Material | RESIN SYNTHETIC FILTERING MEDIUM |
| 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 |
|---|---|
| AC-9999F-UN12Z PRIMARY | Pall Aeropower Corporation (USA) |
| Reference | Meaning |
|---|---|
| AC-9999F-UN12Z | C/1 Advisory reference — outside the item-of-supply concept Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
NSN 4330-01-090-4903 is a Filter Element,fluid, manufactured by Pall Aeropower Corporation, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-090-4903 has 1 manufacturer part number on file: AC-9999F-UN12Z (Pall Aeropower Corporation).
Key specifications for AC-9999F-UN12Z: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 1.768 INCHES NOMINAL IN; Body Overall Length: 4.438 INCHES NOMINAL IN; Filtration Rating in Microns: 12.0 ABSOLUTE AND 2.0 NOMINAL. 12 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.