The Filter Assembly,reducer Fitting, cataloged under National Stock Number 1650-01-102-7564, 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 Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1650-01-102-7564 |
| Primary Part Number | 25198 |
| Item Name | Filter Assembly,reducer Fitting |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| Status | ACTIVE |
| FSC Application Data | FILTER ASSEMBLY,REDUCER HYDRAULIC |
| General Characteristics Item Description | STEEL AISI TYPE 304 AND TYPE 316 CRES;0.813 IN. HEX MS21916J6-4 1;FITTING MS33514-6 1;FITTING MS33514-4 1;OPERATION PRESSURE 3000 PSI;FILTER MEDIUM,RIGIMESH SINTERED WOVEN WIRE MESH;FILTER AREA 0.470 SQ IN.;FILTRATION 17 MICRON NOMINAL;45 MICRON ABSOLUTE IN |
| 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 |
|---|---|
| 25198 PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| Reference | Meaning |
|---|---|
| 226-22403-101 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 1650-01-102-7564 is a Filter Assembly,reducer Fitting, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-102-7564 has 1 manufacturer part number on file: 25198 (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-145-4941. Verify interchangeability with system specifications before substitution.
Key specifications for 25198: FSC Application Data: FILTER ASSEMBLY,REDUCER HYDRAULIC; General Characteristics Item Description: STEEL AISI TYPE 304 AND TYPE 316 CRES;0.813 IN. HEX MS21916J6-4 1;FITTING MS33514-6 1;FITTING MS33514-4 1;OPERATION PRESSURE 3000 PSI;FILTER MEDIUM,RIGIMESH SINTERED WOVEN WIRE MESH;FILTER AREA 0.470 SQ IN.;FILTRATION 17 MICRON NOMINAL;45 MICRON ABSOLUTE IN; End Item Identification: ACFT A7K. 2 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.