The Filter Element,fluid, cataloged under National Stock Number 1650-00-818-3115, 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 Pti Technologies Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-00-818-3115 |
| Primary Part Number | 53521-1 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN |
| FSC Application Data | FILTER,HYDRAULIC,ACFT |
| Body Overall Length | 4.625 INCHES MINIMUM AND 4.688 INCHES MAXIMUM IN |
| Filtration Rating in Microns | 30.0 ABSOLUTE AND 5.0 NOMINAL |
| Flow Direction | OUTSIDE IN |
| Design Type | NONREUSABLE |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 200.0 FAHRENHEIT MAXIMUM DEGF |
| Style Designator | CYLINDRICAL W/CLOSED ENDS |
| Body Inside Diameter | 0.625 INCHES NOMINAL IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Material | RUBBER SYNTHETIC SEAL |
| Material | PAPER 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 |
| Part Number | Manufacturer |
|---|---|
| 53521-1 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| PR403-12 | 5/1 Secondary reference Arvinmeritor Inc |
| 53521-1 | 5/9 Secondary reference Arvinmeritor Inc |
NSN 1650-00-818-3115 is a Filter Element,fluid, manufactured by Pti Technologies Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-818-3115 has 1 manufacturer part number on file: 53521-1 (Pti Technologies Inc.).
Key specifications for 53521-1: Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN; FSC Application Data: FILTER,HYDRAULIC,ACFT; Body Overall Length: 4.625 INCHES MINIMUM AND 4.688 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.