The Filter Element,fluid, cataloged under National Stock Number 1650-00-442-2597, 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 Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government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 | 1650-00-442-2597 |
| Primary Part Number | 500055 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 0.625 INCHES MAXIMUM IN |
| FSC Application Data | HYDRAULIC FLIGHT CONTROL SYSTEM |
| Body Overall Length | 2.445 INCHES MINIMUM AND 2.475 INCHES MAXIMUM IN |
| Filtration Rating in Microns | 15.0 ABSOLUTE |
| Flow Direction | INSIDE OUT |
| Drop Pressure | ERR-060 |
| Design Type | NONREUSABLE |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF |
| Style Designator | CYLINDRICAL W/OUT CONTAINER |
| Body Inside Diameter | 0.314 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Differential Pressure | ERR-060 |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| 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 |
|---|---|
| 500055 PRIMARY | Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations (USA) |
| 206-076-034-3 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| 21-11328 PRIMARY | Pti Technologies Inc. (USA) |
| ACA767F415 PRIMARY | Pall Aeropower Corporation (USA) |
| Reference | Meaning |
|---|---|
| 206-076-034-3 | 1/2 Source control — Government-approved source U.S. Government activity |
| 21-11328 | 5/9 Secondary reference U.S. Government activity |
| 206-076-034-003 | 5/9 Secondary reference Bell Textron Supply Center B.v. |
| 21-11328 | 5/9 Secondary reference U.S. Government activity |
| 94014 | 5/9 Secondary reference Claverham Ltd |
NSN 1650-00-442-2597 is a Filter Element,fluid, manufactured by Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-442-2597 has 4 manufacturer part numbers on file: 500055 (Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations), 206-076-034-3 (Leonardo Spa Helicopters Division - Production Site), 21-11328 (Pti Technologies Inc.), ACA767F415 (Pall Aeropower Corporation).
10 possible matches (shared part number, not a government interchangeability claim): 5915-00-496-4032, 5910-00-611-2827, 6220-00-700-1932. Verify interchangeability with system specifications before substitution.
Key specifications for 500055: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 0.625 INCHES MAXIMUM IN; FSC Application Data: HYDRAULIC FLIGHT CONTROL SYSTEM; Body Overall Length: 2.445 INCHES MINIMUM AND 2.475 INCHES MAXIMUM IN. 13 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.