The Filter Element,fluid, cataloged under National Stock Number 1650-00-078-1863, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-078-1863 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| Filtering Media Design | MOLDED SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 1.134 INCHES MINIMUM AND 1.137 INCHES MAXIMUM IN |
| FSC Application Data | AIRCRAFT HYDRAULIC SYSTEM |
| Body Overall Length | 2.970 INCHES MINIMUM AND 2.990 INCHES MAXIMUM IN |
| Filtration Rating in Microns | 5.0 NOMINAL |
| Flow Direction | OUTSIDE IN |
| Design Type | NONREUSABLE |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF |
| Style Designator | CYLINDRICAL W/OUT CONTAINER |
| Body Inside Diameter | 0.435 INCHES NOMINAL IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 7578542 | 5/1 Secondary reference Pti Technologies Inc. |
| MIL-F-83861 | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-83861 | 4/1 Identification reference U.S. Government activity |
| M83861/3-1 | 2/2 Government specification standardization U.S. Government activity |
| AC-3255F-8PHPY1 | 5/1 Secondary reference Pall Aeropower Corporation |
NSN 1650-00-078-1863 is a Filter Element,fluid, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1650-00-078-1880, 1650-01-104-1013. Verify interchangeability with system specifications before substitution.
Key specifications for 1650-00-078-1863: Filtering Media Design: MOLDED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 1.134 INCHES MINIMUM AND 1.137 INCHES MAXIMUM IN; FSC Application Data: AIRCRAFT HYDRAULIC SYSTEM; Body Overall Length: 2.970 INCHES MINIMUM AND 2.990 INCHES MAXIMUM 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.