The Filter,fluid, cataloged under National Stock Number 1650-01-397-7038, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Hydac Corp. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-397-7038 |
| Primary Part Number | DFBN/HC30G3B1.0/12B6 |
| Item Name | Filter,fluid |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Hydac Corp |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 4 |
| Filtration Rating in Microns | 3.0 ABSOLUTE |
| Distance Between Mounting Hole Centers | 1.181 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN |
| First Intake Nominal Thread Size | 0.750 INCHES IN |
| Mounting Facility Nominal Thread Size | 0.190 INCHES IN |
| Drop Pressure | ERR-060 |
| First Intake Thread Series Designator | UNF |
| Design Type | REUSABLE |
| Body Outside Diameter | 2.720 INCHES NOMINAL IN |
| Temp Rating | 15.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 6.660 INCHES NOMINAL IN |
| Supplementary Features | NEXT HIGHER ASSEMBLY IS 4320-01-345-0478 POWER DRIVEN HYDRAULIC PUMPING UNIT |
| First Intake Connection Type | THREADED INTERNAL TUBE HEAD SIDE |
| First Intake Thread Class | 2B |
| Style Designator | HIGH PRESSURE THREADED BODY |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | DIFFERENTIAL PRESSURE INDICATOR |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Differential Pressure | ERR-060 |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Mounting Facility Thread Series Designator | UNF |
| Material | RUBBER BUNA N SEAL |
| Material | STEEL CORROSION RESISTING BODY |
| Material | STEEL CORROSION RESISTING SEDIMENT BOWL |
| 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 |
|---|---|
| DFBN/HC30G3B1.0/12B6 PRIMARY | Hydac Corp (USA) |
| Reference | Meaning |
|---|---|
| DFBN/HC30G3B1.0/12 | 5/9 Secondary reference Hydac Corp |
| DFBN3HC30G3B1.0/12B6 | 3/9 Design control — primary reference Hydac Corp |
NSN 1650-01-397-7038 is a Filter,fluid, manufactured by Hydac Corp, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-397-7038 has 1 manufacturer part number on file: DFBN/HC30G3B1.0/12B6 (Hydac Corp).
Key specifications for DFBN/HC30G3B1.0/12B6: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 4; Filtration Rating in Microns: 3.0 ABSOLUTE; Distance Between Mounting Hole Centers: 1.181 INCHES MINIMUM AND 1.772 INCHES MAXIMUM IN. 28 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.