The Filter,fluid, cataloged under National Stock Number 4330-01-023-3465, 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 Welding Metallurgy, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-023-3465 |
| Primary Part Number | 123EC51075-1 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Welding Metallurgy, Inc. |
| Status | ACTIVE |
| First Discharge Thread Class | 2B |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| First Discharge Connection Type | THREADED INTERNAL TUBE CENTER |
| FSC Application Data | EQUIPMENT COOLING AIRCRAFT E2C |
| Filtration Rating in Microns | 10.0 NOMINAL |
| First Intake Nominal Thread Size | 0.750 INCHES IN |
| First Intake Thread Series Designator | UNF |
| Design Type | REUSABLE |
| Body Outside Diameter | 0.875 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED EXTERNAL TUBE CENTER |
| First Intake Thread Class | 2A A |
| First Discharge Nominal Thread Size | 0.750 INCHES IN |
| Filtering Element Quantity | 1 |
| Body Length | 3.730 INCHES NOMINAL IN |
| First Discharge Thread Direction | RIGHT-HAND |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | ALUMINUM ALLOY SEDIMENT BOWL |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| First Discharge Thread Series Designator | UNF |
| 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 |
|---|---|
| 123EC51075-1 PRIMARY | Welding Metallurgy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 123EC51075-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 123EC51075-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4330-01-023-3465 is a Filter,fluid, manufactured by Welding Metallurgy, Inc., classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-023-3465 has 1 manufacturer part number on file: 123EC51075-1 (Welding Metallurgy, Inc.).
Key specifications for 123EC51075-1: First Discharge Thread Class: 2B; Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; First Discharge Connection Type: THREADED INTERNAL TUBE CENTER; FSC Application Data: EQUIPMENT COOLING AIRCRAFT E2C. 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.