The Filter,fluid, cataloged under National Stock Number 4330-00-559-1802, 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 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4330-00-559-1802 |
| Primary Part Number | AD9999-12Y8 |
| 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 | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 2 |
| Distance Between Mounting Hole Centers | 3.608 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 1.000 INCHES IN |
| Drop Pressure | ERR-060 |
| First Intake Thread Series Designator | UNF |
| Design Type | NONREUSABLE |
| Body Outside Diameter | 4.000 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 6.625 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL TUBE TOP SIDE |
| First Intake Thread Class | 2B |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Mounting Hole Diameter | 0.264 INCHES NOMINAL IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | DIFFERENTIAL PRESSURE INDICATOR |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Material | ALUMINUM ALLOY CONTAINER/CARTRIDGE |
| 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 |
|---|---|
| AD9999-12Y8 PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| Reference | Meaning |
|---|---|
| AD9999-12Y8 | 5/9 Secondary reference Pall Aeropower Corporation |
NSN 4330-00-559-1802 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 4330-00-559-1802 has 1 manufacturer part number on file: AD9999-12Y8 (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
Key specifications for AD9999-12Y8: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 2; Distance Between Mounting Hole Centers: 3.608 INCHES NOMINAL IN; First Intake Nominal Thread Size: 1.000 INCHES IN. 22 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.