The Filter,fluid, cataloged under National Stock Number 4330-01-261-1107, 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 21 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-261-1107 |
| Primary Part Number | WD-00442-12C |
| 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 |
| Distance Between Mounting Hole Centers | 3.000 INCHES NOMINAL IN |
| Drop Pressure | ERR-060 |
| Design Type | REUSABLE |
| Body Outside Diameter | 2.750 INCHES NOMINAL IN |
| Temp Rating | 50.0 FAHRENHEIT MINIMUM AND 220.0 FAHRENHEIT MAXIMUM DEGF |
| Body Height | 8.055 INCHES NOMINAL IN |
| First Intake Connection Type | INTERNAL SOLDER TOP SIDE |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Mounting Hole Diameter | 0.266 INCHES NOMINAL IN |
| Operating Pressure | 100.0 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 Intake Nominal Inside Diameter | 0.500 INCHES IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Differential Pressure | ERR-060 |
| Media for Which Designed | WATER |
| Material | NICKEL AND COPPER ALLOY SEDIMENT BOWL |
| Mounting Type | UNTHREADED HOLE HEAD SIDE |
| 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 |
|---|---|
| WD-00442-12C PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
NSN 4330-01-261-1107 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 4330-01-261-1107 has 1 manufacturer part number on file: WD-00442-12C (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-261-1114. Verify interchangeability with system specifications before substitution.
Key specifications for WD-00442-12C: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 2; Distance Between Mounting Hole Centers: 3.000 INCHES NOMINAL IN; Drop Pressure: ERR-060. 21 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.