PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11-10644Filter,fluid

Transdigm Inc Div Aero Fluid Products · NSN 1650-00-850-4700 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-850-4700 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-850-4700. Primary manufacturer part number: 11-10644.
Features
  • Filter,fluid — FSC 1650
  • Body Outside Diameter: 1.000 INCHES NOMINAL IN
  • First Discharge Nominal Thread Size: 0.4375 INCHES IN
  • First Intake Thread Series Designator: UNF
  • Operating Pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
  • First Discharge Thread Direction: RIGHT-HAND
  • First Discharge Connection Type: THREADED INTERNAL TUBE END
  • First Intake Thread Direction: RIGHT-HAND
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Applications requiring Steel Corrosion Resisting Filtering Medium construction
General Description

The Filter,fluid, cataloged under National Stock Number 1650-00-850-4700, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Transdigm Inc Div Aero Fluid Products. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-850-4700
Primary Part Number11-10644
Item NameFilter,fluid
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerTransdigm Inc Div Aero Fluid Products
StatusACTIVE
Body Outside Diameter1.000 INCHES NOMINAL IN
First Discharge Nominal Thread Size0.4375 INCHES IN
First Intake Thread Series DesignatorUNF
Operating Pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
First Discharge Thread DirectionRIGHT-HAND
First Discharge Connection TypeTHREADED INTERNAL TUBE END
First Intake Thread DirectionRIGHT-HAND
First Intake Thread Quantity Per Inch20
First Discharge Thread Quantity Per Inch20
First Intake Connection TypeTHREADED INTERNAL TUBE END
First Intake Thread Class3B
MaterialSTEEL CORROSION RESISTING FILTERING MEDIUM
First Intake Nominal Thread Size0.4375 INCHES IN
Filtering Media DesignMESH SINGLE FILTERING MEDIA RESPONSE
First Discharge Thread Series DesignatorUNF
First Discharge Thread Class3B
Design TypeREUSABLE
Filtering Element Quantity1
Body Length2.875 INCHES NOMINAL IN
Filtration Rating in Microns25.0 ABSOLUTE AND 10.0 NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6550-01-056-3378211279 INTERCHANGEABLE
Culture Medium,gn Broth
Becton, Dickinson and Company Dba Becton Dickinson & Co
Cross-Reference Index
Part NumberManufacturer
209-076-022-1 Bell Textron Inc (USA)
7578080 Pti Technologies Inc. (USA)
211-279 Donaldson Company, Inc. (USA)
11-10644 PRIMARY Transdigm Inc Div Aero Fluid Products (USA)
11-10644 PRIMARY Pti Technologies Inc. (USA)
11-10644 Woodward Hrt Inc (USA)
211-279 Donaldson Company, Inc. (USA)
Related Parts
6550-01-056-3378INTERCHANGEABLE
CULTURE MEDIUM,GN BROTH
211279

Frequently Asked Questions

What is NSN 1650-00-850-4700?

NSN 1650-00-850-4700 is a Filter,fluid, manufactured by Transdigm Inc Div Aero Fluid Products, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-850-4700?

NSN 1650-00-850-4700 has 7 cross-referenced part numbers: 209-076-022-1 (Bell Textron Inc), 7578080 (Pti Technologies Inc.), 211-279 (Donaldson Company, Inc.), 11-10644 (Transdigm Inc Div Aero Fluid Products), 11-10644 (Pti Technologies Inc.) and 2 more.

What NSN replaces 1650-00-850-4700?

There is 1 known substitute for 1650-00-850-4700: 6550-01-056-3378. Verify interchangeability with system specifications before substitution.

What are the specifications of 11-10644?

Key specifications for 11-10644: Body Outside Diameter: 1.000 INCHES NOMINAL IN; First Discharge Nominal Thread Size: 0.4375 INCHES IN; First Intake Thread Series Designator: UNF; Operating Pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS. 21 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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