The Filter,fluid, cataloged under National Stock Number 4330-01-229-6487, 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 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-229-6487 |
| Primary Part Number | EF11A |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Schroeder Industries Llc |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Filtration Rating in Microns | 25.0 NOMINAL |
| Distance Between Mounting Hole Centers | 1.500 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 1.000 INCHES IN |
| Mounting Facility Nominal Thread Size | 0.375 INCHES IN |
| First Intake Thread Series Designator | NPTF |
| Design Type | REUSABLE |
| Temp Rating | 250.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| Body Width | 4.250 INCHES NOMINAL IN |
| Body Height | 9.000 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL PIPE HEAD SIDE |
| Style Designator | HIGH PRESSURE BOLTED SHELL |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | BY-PASS VALVE |
| Filtering Element Quantity | 1 |
| Body Length | 4.500 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Mounting Facility Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | RUBBER SYNTHETIC SEAL |
| Material | ALUMINUM ALLOY AND STEEL BODY |
| Material | PAPER FILTERING MEDIUM |
| Mounting Type | THREADED HOLE 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 |
|---|---|
| EF11A PRIMARY | Schroeder Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| TF1-1A25V-P | 5/9 Secondary reference Schroeder Industries Llc |
NSN 4330-01-229-6487 is a Filter,fluid, manufactured by Schroeder Industries Llc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-229-6487 has 1 manufacturer part number on file: EF11A (Schroeder Industries Llc).
Key specifications for EF11A: Mounting Hole Quantity: 2; Filtration Rating in Microns: 25.0 NOMINAL; Distance Between Mounting Hole Centers: 1.500 INCHES NOMINAL IN; First Intake Nominal Thread Size: 1.000 INCHES IN. 23 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.