The Filter,fluid, cataloged under National Stock Number 4330-01-227-4722, 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 Corp Sub of Pall Corp Mectron Industries Div. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-227-4722 |
| Primary Part Number | AH9998A12UTRW |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| Status | ACTIVE |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 2 |
| Filtration Rating in Microns | 10.0 NOMINAL |
| Distance From Bottom of Body to Center of Inlet | 5.750 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 0.750 INCHES IN |
| First Intake Thread Series Designator | UNS |
| Design Type | REUSABLE |
| Body Outside Diameter | 2.500 INCHES NOMINAL IN |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF |
| Body Height | 6.830 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL TUBE HEAD SIDE |
| Mounting Hole Diameter | 0.261 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN |
| Operating Pressure | 15000.0 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 |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | ALUMINUM SEDIMENT BOWL |
| Material | ALUMINUM BODY |
| Mounting Type | UNTHREADED HOLE SIDE NEAR TOP |
| 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 |
|---|---|
| 283550-1633 | Atlantic Inertial Systems Limited (GBR) |
| AH9998A12UTRW PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
NSN 4330-01-227-4722 is a Filter,fluid, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-227-4722 has 2 manufacturer part numbers on file: 283550-1633 (Atlantic Inertial Systems Limited), AH9998A12UTRW (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
Key specifications for AH9998A12UTRW: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 2; Filtration Rating in Microns: 10.0 NOMINAL; Distance From Bottom of Body to Center of Inlet: 5.750 INCHES NOMINAL IN. 20 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.