The Filter,fluid, cataloged under National Stock Number 4330-01-312-9261, 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 Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-312-9261 |
| Primary Part Number | 374A-NV50-VZ323 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 4 |
| Filtration Rating in Microns | 20.0 ABSOLUTE AND 10.0 NOMINAL |
| Distance Between Mounting Hole Centers | 2.360 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN |
| Design Type | REUSABLE |
| Body Outside Diameter | 7.280 INCHES NOMINAL IN |
| First Intake Flange Thickness | 1.660 INCHES NOMINAL IN |
| First Intake Flange Width | 3.700 INCHES NOMINAL IN |
| First Intake Flange Length | 5.870 INCHES NOMINAL IN |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 212.0 FAHRENHEIT MAXIMUM DEGF |
| Body Height | 19.890 INCHES NOMINAL IN |
| First Intake Connection Type | PLAIN FACE FLANGE HEAD |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Mounting Hole Diameter | 0.670 INCHES NOMINAL IN |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | DIFFERENTIAL PRESSURE INDICATOR AND DRAIN PLUG |
| First Intake Flange Shape Style | RECTANGULAR W/THREADED BOLT HOLES |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Differential Pressure | ERR-060 |
| Media for Which Designed | FUEL/OIL, HYDROCARBON OR WATER/ALCOHOL MIXTURE |
| Material | RUBBER BUNA N SEAL |
| Material | STEEL CORROSION RESISTING SEDIMENT BOWL |
| Material | PAPER FILTERING MEDIUM |
| Material | IRON CAST BODY |
| Mounting Type | UNTHREADED HOLE HEAD |
| First Intake Flange Face Style | PLAIN |
| 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 |
|---|---|
| 374A-NV50-VZ323 PRIMARY | Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations (USA) |
| Reference | Meaning |
|---|---|
| 374A-4N50-VZ-310 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division |
| 374A-4N50-VZ-310 | 3/9 Design control — primary reference Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
NSN 4330-01-312-9261 is a Filter,fluid, manufactured by Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-312-9261 has 1 manufacturer part number on file: 374A-NV50-VZ323 (Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations).
Key specifications for 374A-NV50-VZ323: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 4; Filtration Rating in Microns: 20.0 ABSOLUTE AND 10.0 NOMINAL; Distance Between Mounting Hole Centers: 2.360 INCHES MINIMUM AND 4.530 INCHES MAXIMUM IN. 28 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.