The Filter,fluid, cataloged under National Stock Number 1650-00-421-2221, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-00-421-2221 |
| Primary Part Number | 7587796-101 |
| Item Name | Filter,fluid |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| First Discharge Thread Class | 3B |
| Filtering Media Design | PLEATED SINGLE FILTERING MEDIA RESPONSE |
| First Discharge Connection Type | THREADED INTERNAL TUBE HEAD |
| FSC Application Data | HYDRAULIC SYSTEM |
| First Discharge Thread Quantity Per Inch | 12 |
| Design Type | REUSABLE |
| Body Width | 3.690 INCHES NOMINAL IN |
| Body Height | 3.800 INCHES NOMINAL IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| First Discharge Nominal Thread Size | 1.062 INCHES IN |
| Filtering Element Quantity | 1 |
| First Discharge Thread Direction | RIGHT-HAND |
| First Discharge Connection Relationship to Intake Connection | NOT IDENTICAL |
| Material | PAPER FILTERING MEDIUM |
| Mounting Type | OUTLET CONNECTION HEAD |
| First Discharge Thread Series Designator | UN |
| 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 |
|---|---|
| 7587796-101 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 11-11208 | 5/9 Secondary reference U.S. Government activity |
| 11-11208 | 5/2 Secondary reference U.S. Government activity |
NSN 1650-00-421-2221 is a Filter,fluid, manufactured by Pti Technologies Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-421-2221 has 1 manufacturer part number on file: 7587796-101 (Pti Technologies Inc.).
Key specifications for 7587796-101: First Discharge Thread Class: 3B; Filtering Media Design: PLEATED SINGLE FILTERING MEDIA RESPONSE; First Discharge Connection Type: THREADED INTERNAL TUBE HEAD; FSC Application Data: HYDRAULIC SYSTEM. 16 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.