PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0S12223Filter,fluid

Falls Filtration Technologies, Inc. · NSN 2945-00-595-2921 · FSC 2945 · No Item Name Available
Verified by PartsTable
NSN 2945-00-595-2921 — this item is cataloged by the U.S. Government under National Stock Number 2945-00-595-2921. Primary manufacturer part number: 0S12223.
Features
  • Filter,fluid — FSC 2945
  • Filtering Element Quantity: 1
  • Design Type: REUSABLE
  • FSC Application Data: OIL FILTER,ENGINE,AIRCRAFT
  • First Intake Connection Type: THREADED INTERNAL TUBE SIDE
  • Filtering Media Design: SINGLE STACKED DISKS SINGLE FILTERING MEDIA RESPONSE
  • Operating Pressure: 15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
  • First Intake Thread Series Designator: UNF
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Applications requiring Copper Alloy Filtering Medium construction
General Description

The Filter,fluid, cataloged under National Stock Number 2945-00-595-2921, is classified within Federal Supply Class 2945 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Falls Filtration Technologies, Inc.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN2945-00-595-2921
Primary Part Number0S12223
Item NameFilter,fluid
FSC / FSG2945 / 29 — No Item Name Available
ManufacturerFalls Filtration Technologies, Inc.
StatusCANCELLED
Filtering Element Quantity1
Design TypeREUSABLE
FSC Application DataOIL FILTER,ENGINE,AIRCRAFT
First Intake Connection TypeTHREADED INTERNAL TUBE SIDE
Filtering Media DesignSINGLE STACKED DISKS SINGLE FILTERING MEDIA RESPONSE
Operating Pressure15.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
First Intake Thread Series DesignatorUNF
First Discharge Connection Relationship to Intake ConnectionIDENTICAL TO FIRST INTAKE CONNECTION
First Intake Thread Quantity Per Inch18
First Discharge Thread Series DesignatorUNF
MaterialCOPPER ALLOY FILTERING MEDIUM
First Intake Thread DirectionRIGHT-HAND
First Intake Nominal Thread Size0.562 INCHES IN
First Discharge Thread DirectionRIGHT-HAND
First Discharge Nominal Thread Size0.562 INCHES IN
First Discharge Thread Quantity Per Inch18
Body Height1.938 INCHES NOMINAL IN
Body Width2.188 INCHES NOMINAL IN
Body Length3.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-051-38573857 INTERCHANGEABLE
Bit,wire Wrapping Tool
A.w. Mack Manufacturing Co., Inc.
3110-00-141-99870385-7 INTERCHANGEABLE
Bearing,ball,annular
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
3020-00-288-64503856 INTERCHANGEABLE
Gear,spur
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
6515-00-307-55963856 INTERCHANGEABLE
Stockings,anti-Embolism
Covidien Sales Llc Dba Covidien Sales
4510-00-318-82083856 INTERCHANGEABLE
Handle,water Tank
The Central Brass Manufacturing Company
4820-00-412-2356 INTERCHANGEABLE
Valve,check
5935-00-450-46473926 INTERCHANGEABLE
Connector,receptacle,electrical
Bryant Electric
2930-00-560-1952 INTERCHANGEABLE
Radiator Engine Coo
5220-00-588-59923856 INTERCHANGEABLE
Gage,turbine Rotor
Rolls-Royce Corporation
5950-00-645-776555C205 INTERCHANGEABLE
Transformer,audio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Cross-Reference Index
Part NumberManufacturer
3857 Hydro-Aire Aerospace Corp (USA)
3857 Hydro Silica Corp (USA)
0S12223 PRIMARY Falls Filtration Technologies, Inc. (USA)
3856 Hydro Silica Corp (USA)
Related Parts
5120-00-051-3857INTERCHANGEABLE
BIT,WIRE WRAPPING TOOL
3857
3110-00-141-9987INTERCHANGEABLE
BEARING,BALL,ANNULAR
0385-7
3020-00-288-6450INTERCHANGEABLE
GEAR,SPUR
3856
6515-00-307-5596INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
3856
4510-00-318-8208INTERCHANGEABLE
HANDLE,WATER TANK
3856
4820-00-412-2356INTERCHANGEABLE
VALVE,CHECK
5935-00-450-4647INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
3926
2930-00-560-1952INTERCHANGEABLE
RADIATOR ENGINE COO
5220-00-588-5992INTERCHANGEABLE
GAGE,TURBINE ROTOR
3856
5950-00-645-7765INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
55C205
5330-00-709-7434INTERCHANGEABLE
GASKET
5998-00-827-2028INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY

Frequently Asked Questions

What is NSN 2945-00-595-2921?

NSN 2945-00-595-2921 is a Filter,fluid, manufactured by Falls Filtration Technologies, Inc., classified under FSC 2945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2945-00-595-2921?

NSN 2945-00-595-2921 has 4 cross-referenced part numbers: 3857 (Hydro-Aire Aerospace Corp), 3857 (Hydro Silica Corp), 0S12223 (Falls Filtration Technologies, Inc.), 3856 (Hydro Silica Corp).

What NSN replaces 2945-00-595-2921?

There are 12 known substitutes for 2945-00-595-2921: 5120-00-051-3857, 3110-00-141-9987, 3020-00-288-6450 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0S12223?

Key specifications for 0S12223: Filtering Element Quantity: 1; Design Type: REUSABLE; FSC Application Data: OIL FILTER,ENGINE,AIRCRAFT; First Intake Connection Type: THREADED INTERNAL TUBE SIDE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2945-00-595-2921 still in active supply?

NSN 2945-00-595-2921 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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