The Filter,fluid, cataloged under National Stock Number 4330-01-203-4840, 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 Moog Military Aircraft Llc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-203-4840 |
| Primary Part Number | A81675-1V1 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Moog Military Aircraft Llc |
| Status | ACTIVE |
| Filtering Media Design | PLEATED ALL FILTERING MEDIA RESPONSES |
| Filtration Rating in Microns | 3.0 ABSOLUTE AND 0.5 NOMINAL |
| First Intake Nominal Thread Size | 1.312 INCHES IN |
| Drop Pressure | ERR-060 |
| First Intake Thread Series Designator | UN |
| Design Type | REUSABLE |
| Body Outside Diameter | 5.600 INCHES NOMINAL IN |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 225.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 9.330 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL TUBE HEAD SIDE |
| First Intake Thread Class | 2B |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | BY-PASS FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | STEEL BODY |
| Material | RUBBER BUNA N SEAL |
| Material | CELLULOSE AND PAPER AND RESIN SYNTHETIC FILTERING MEDIUM |
| First Intake Thread Quantity Per Inch | 12 |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION 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 |
|---|---|
| A81675-1V1 PRIMARY | Moog Military Aircraft Llc (USA) |
| Reference | Meaning |
|---|---|
| 5209739 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
| 010-60170A0000N | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 010-60170A0000NF | 5/9 Secondary reference U.S. Government activity |
| A81675-1-1 | 5/9 Secondary reference U.S. Government activity |
| A81675-1V1 | 5/9 Secondary reference U.S. Government activity |
NSN 4330-01-203-4840 is a Filter,fluid, manufactured by Moog Military Aircraft Llc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-203-4840 has 1 manufacturer part number on file: A81675-1V1 (Moog Military Aircraft Llc).
Key specifications for A81675-1V1: Filtering Media Design: PLEATED ALL FILTERING MEDIA RESPONSES; Filtration Rating in Microns: 3.0 ABSOLUTE AND 0.5 NOMINAL; First Intake Nominal Thread Size: 1.312 INCHES IN; Drop Pressure: ERR-060. 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.