The Filter,fluid, cataloged under National Stock Number 4330-01-219-8743, 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 Johnson Controls, Inc Div Building Efficiency. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-219-8743 |
| Primary Part Number | A-4000-601 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Johnson Controls, Inc Div Building Efficiency |
| Status | ACTIVE |
| Filtration Rating in Microns | 0.03 ABSOLUTE |
| First Intake Nominal Thread Size | 0.500 INCHES IN |
| First Intake Thread Series Designator | NPT |
| Design Type | REUSABLE |
| Temp Rating | 125.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED INTERNAL PIPE HEAD SIDE |
| 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 | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | AIR |
| 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 |
|---|---|
| A-4000-601 PRIMARY | Johnson Controls, Inc Div Building Efficiency (USA) |
| Reference | Meaning |
|---|---|
| A-4000-601 | 5/9 Secondary reference Metronics Inc Sub of Johnson Carlyle Machine Co |
NSN 4330-01-219-8743 is a Filter,fluid, manufactured by Johnson Controls, Inc Div Building Efficiency, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-219-8743 has 1 manufacturer part number on file: A-4000-601 (Johnson Controls, Inc Div Building Efficiency).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-336-4413. Verify interchangeability with system specifications before substitution.
Key specifications for A-4000-601: Filtration Rating in Microns: 0.03 ABSOLUTE; First Intake Nominal Thread Size: 0.500 INCHES IN; First Intake Thread Series Designator: NPT; Design Type: REUSABLE. 13 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.