The Filter,fluid, cataloged under National Stock Number 1650-01-174-3949, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-174-3949 |
| Primary Part Number | 7M621-1 |
| Item Name | Filter,fluid |
| FSC / FSG | 1650 / 16 — No Item Name Available |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Filtering Element Quantity | 1 |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 225.0 FAHRENHEIT MAXIMUM DEGF |
| Differential Pressure | ERR-060 |
| First Intake Thread Series Designator | UNJS |
| First Discharge Nominal Thread Size | 0.437 INCHES IN |
| First Discharge Thread Series Designator | UNJS |
| First Discharge Connection Relationship to Intake Connection | NOT IDENTICAL |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| First Intake Thread Class | 3A A |
| First Discharge Thread Class | 3A A |
| First Discharge Connection Type | THREADED INTERNAL PIPE END |
| First Discharge Thread Quantity Per Inch | 24 |
| First Intake Thread Quantity Per Inch | 20 |
| First Discharge Thread Direction | RIGHT-HAND |
| First Intake Thread Direction | RIGHT-HAND |
| Media for Which Designed | AIR |
| First Intake Connection Type | THREADED INTERNAL PIPE END |
| First Intake Nominal Thread Size | 0.562 INCHES IN |
| Filtration Rating in Microns | 25.0 ABSOLUTE |
| Drop Pressure | ERR-060 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 1650-01-174-3949 is a Filter,fluid, manufactured by The Boeing Company Div Defense, classified under FSC 1650 (No Item Name Available). Status: active.
NSN 1650-01-174-3949 has 3 cross-referenced part numbers: 7M621-1 (The Boeing Company Div Defense), 26002 (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div), 26002 (Pall Aeropower Corporation).
There are 12 known substitutes for 1650-01-174-3949: 3110-00-003-5505, 5835-00-195-7508, 5325-00-449-3022 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7M621-1: Filtering Element Quantity: 1; Temp Rating: -40.0 FAHRENHEIT MINIMUM AND 225.0 FAHRENHEIT MAXIMUM DEGF; Differential Pressure: ERR-060; First Intake Thread Series Designator: UNJS. 20 total characteristics are documented in the Federal Logistics Information System.