The Filter,fluid, cataloged under National Stock Number 4330-01-324-6598, 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 Tyco Fire Products Lp. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4330-01-324-6598 |
| Primary Part Number | 77557 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Filtration Rating in Microns | 25.0 ABSOLUTE AND 10.0 NOMINAL |
| First Intake Nominal Thread Size | 0.438 INCHES IN |
| First Intake Thread Series Designator | UNF |
| Design Type | NONREUSABLE |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED EXTERNAL TUBE LINE |
| First Intake Thread Class | 2A A |
| Style Designator | INLINE DISPOSAL W/THREADED CONNECTIONS |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Filtering Element Quantity | 1 |
| Body Length | 0.890 INCHES NOMINAL IN |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | STEEL FILTERING MEDIUM |
| Material | STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 316 OR STEEL COMP 316L BODY |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| 77557 PRIMARY | Tyco Fire Products Lp (USA) |
| F16C025-4T4F PRIMARY | Wintec Llc (USA) |
| Reference | Meaning |
|---|---|
| 77820N | D/9 Drawing number reference only Tyco Fire Products Lp |
NSN 4330-01-324-6598 is a Filter,fluid, manufactured by Tyco Fire Products Lp, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-324-6598 has 2 manufacturer part numbers on file: 77557 (Tyco Fire Products Lp), F16C025-4T4F (Wintec Llc).
Key specifications for 77557: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Filtration Rating in Microns: 25.0 ABSOLUTE AND 10.0 NOMINAL; First Intake Nominal Thread Size: 0.438 INCHES IN; First Intake Thread Series Designator: UNF. 17 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.