The Filter Element,fluid, cataloged under National Stock Number 4330-00-461-3891, 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 Gast Mfg Corp. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-00-461-3891 |
| Primary Part Number | AB609B |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Gast Mfg Corp |
| Status | ACTIVE |
| Filtering Media Design | CORE FIRST FILTERING MEDIA RESPONSE |
| Filtering Media Design | MOLDED SECOND FILTERING MEDIA RESPONSE |
| Body Diameter | 3.062 INCHES NOMINAL IN |
| Body Overall Length | 5.375 INCHES NOMINAL IN |
| Flow Direction | OUTSIDE IN |
| Drop Pressure | ERR-060 |
| Design Type | LIMITED |
| Nominal Thread Size | 0.250 INCHES IN |
| Media for Which Designed | ANY ACCEPTABLE |
| Material | RUBBER SYNTHETIC SEAL |
| Material | FIBER FILTERING MEDIUM |
| Thread Series Designator | NPSF |
| 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 |
|---|---|
| AB609B PRIMARY | Gast Mfg Corp (USA) |
NSN 4330-00-461-3891 is a Filter Element,fluid, manufactured by Gast Mfg Corp, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-00-461-3891 has 1 manufacturer part number on file: AB609B (Gast Mfg Corp).
Key specifications for AB609B: Filtering Media Design: CORE FIRST FILTERING MEDIA RESPONSE; Filtering Media Design: MOLDED SECOND FILTERING MEDIA RESPONSE; Body Diameter: 3.062 INCHES NOMINAL IN; Body Overall Length: 5.375 INCHES NOMINAL IN. 12 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.