The Filter,fluid, cataloged under National Stock Number 4330-01-398-4585, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-398-4585 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Status | ACTIVE |
| First Discharge Thread Class | 3B |
| Filtering Media Design | MESH OR WOVEN SINGLE FILTERING MEDIA RESPONSE |
| First Discharge Connection Type | THREADED INTERNAL TUBE HEAD SIDE |
| Mounting Hole Quantity | 2 |
| First Intake Nominal Thread Size | 0.562 INCHES IN |
| Drop Pressure | ERR-060 |
| First Intake Thread Series Designator | UNF |
| Design Type | REUSABLE |
| Temp Rating | 925.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED INTERNAL TUBE HEAD SIDE |
| First Intake Thread Class | 2B |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| First Discharge Nominal Thread Size | 0.5625 INCHES IN |
| Features Provided | DIFFERENTIAL PRESSURE INDICATOR |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Thread Direction | RIGHT-HAND |
| First Discharge Connection Relationship to Intake Connection | NOT IDENTICAL |
| Differential Pressure | ERR-060 |
| Media for Which Designed | AIR |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL COMP 347 BODY |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Mounting Type | UNTHREADED HOLE HEAD SIDE |
| First Discharge Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 83410 ITEM 38 | 5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| 83918 | 5/1 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| ES-83918-1 | 3/2 Design control — primary reference U.S. Government activity |
| 83410 | 5/1 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| 83918-1 | 5/9 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
NSN 4330-01-398-4585 is a Filter,fluid, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5360-01-432-2138, 5360-01-462-7398. Verify interchangeability with system specifications before substitution.
Key specifications for 4330-01-398-4585: First Discharge Thread Class: 3B; Filtering Media Design: MESH OR WOVEN SINGLE FILTERING MEDIA RESPONSE; First Discharge Connection Type: THREADED INTERNAL TUBE HEAD SIDE; Mounting Hole Quantity: 2. 26 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.