The Filter,fluid, cataloged under National Stock Number 4330-01-388-4507, 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 Realtech of Florida Dba Vierk Industrialproducts. Government technical data includes 15 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 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 | 4330-01-388-4507 |
| Primary Part Number | SS-12 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Realtech of Florida Dba Vierk Industrialproducts |
| Status | ACTIVE |
| Filtering Media Design | POROUS FIRST FILTERING MEDIA RESPONSE |
| Distance From Bottom of Body to Center of Inlet | 6.750 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 1.500 INCHES IN |
| First Intake Thread Series Designator | NPTF |
| Design Type | NONREUSABLE |
| Body Outside Diameter | 39.125 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 11.000 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL PIPE SIDE |
| Style Designator | FLOOR MOUNTED SPLIT BODY (LOOP OR RIM CLAMP) |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Filtering Element Quantity | 12 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | STEEL CORROSION RESISTING BODY |
| 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 |
|---|---|
| SS-12 PRIMARY | Realtech of Florida Dba Vierk Industrialproducts (USA) |
NSN 4330-01-388-4507 is a Filter,fluid, manufactured by Realtech of Florida Dba Vierk Industrialproducts, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-388-4507 has 1 manufacturer part number on file: SS-12 (Realtech of Florida Dba Vierk Industrialproducts).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-733-5986. Verify interchangeability with system specifications before substitution.
Key specifications for SS-12: Filtering Media Design: POROUS FIRST FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 6.750 INCHES NOMINAL IN; First Intake Nominal Thread Size: 1.500 INCHES IN; First Intake Thread Series Designator: NPTF. 15 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.