The Filter,fluid, cataloged under National Stock Number 4330-01-346-4728, 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 Schroeder Industries Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-346-4728 |
| Primary Part Number | KF30-2KS3-P-40-MS-G588 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Schroeder Industries Llc |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 4 |
| Filtration Rating in Microns | 3.0 NOMINAL |
| Distance Between Mounting Hole Centers | 4.500 INCHES NOMINAL AND 5.000 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 1.500 INCHES IN |
| Drop Pressure | ERR-060 |
| First Intake Thread Series Designator | NPTF |
| Design Type | REUSABLE |
| Body Outside Diameter | 5.000 INCHES NOMINAL IN |
| Temp Rating | -45.0 FAHRENHEIT MINIMUM AND 225.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 26.000 INCHES NOMINAL IN |
| Supplementary Features | ELECTRIC CAM OPERATED INDICATOR |
| First Intake Connection Type | THREADED INTERNAL PIPE BASE |
| Style Designator | UNTHREADED BODY AND COVER ASSY (FILTER HEAD AT BOTTOM) |
| Mounting Hole Diameter | 0.562 INCHES NOMINAL IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | BY-PASS VALVE |
| Filtering Element Quantity | 2 |
| 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 |
| Material | STEEL SEDIMENT BOWL |
| Material | RUBBER BUNA N SEAL |
| Material | GLASS FILTERING MEDIUM |
| Material | IRON CAST BODY |
| Mounting Type | UNTHREADED HOLE BASE |
| 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 |
|---|---|
| KF30-2KS3-P-40-MS-G588 PRIMARY | Schroeder Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| D-5590 | D/9 Drawing number reference only Schroeder Industries Llc |
NSN 4330-01-346-4728 is a Filter,fluid, manufactured by Schroeder Industries Llc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-346-4728 has 1 manufacturer part number on file: KF30-2KS3-P-40-MS-G588 (Schroeder Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-517-1414. Verify interchangeability with system specifications before substitution.
Key specifications for KF30-2KS3-P-40-MS-G588: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 4; Filtration Rating in Microns: 3.0 NOMINAL; Distance Between Mounting Hole Centers: 4.500 INCHES NOMINAL AND 5.000 INCHES NOMINAL 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.