PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

03S03753Filter,fluid

Falls Filtration Technologies, Inc. · NSN 2945-00-328-3398 · FSC 2945 · No Item Name Available
Verified by PartsTable
NSN 2945-00-328-3398 — this item is cataloged by the U.S. Government under National Stock Number 2945-00-328-3398. Primary manufacturer part number: 03S03753.
Features
  • Filter,fluid — FSC 2945
  • Body Outside Diameter: 3.750 INCHES NOMINAL IN
  • Filtering Element Quantity: 1
  • Design Type: REUSABLE
  • Features Provided: BY-PASS VALVE
  • First Discharge Thread Series Designator: UNF
  • First Intake Connection Type: THREADED EXTERNAL TUBE SIDE
  • First Discharge Connection Relationship to Intake Connection: IDENTICAL TO FIRST INTAKE CONNECTION
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
  • Applications requiring Copper Alloy Body construction
General Description

The Filter,fluid, cataloged under National Stock Number 2945-00-328-3398, 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 20 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
NSN2945-00-328-3398
Primary Part Number03S03753
Item NameFilter,fluid
FSC / FSG2945 / 29 — No Item Name Available
ManufacturerFalls Filtration Technologies, Inc.
StatusCANCELLED
Body Outside Diameter3.750 INCHES NOMINAL IN
Filtering Element Quantity1
Design TypeREUSABLE
Features ProvidedBY-PASS VALVE
First Discharge Thread Series DesignatorUNF
First Intake Connection TypeTHREADED EXTERNAL TUBE SIDE
First Discharge Connection Relationship to Intake ConnectionIDENTICAL TO FIRST INTAKE CONNECTION
First Discharge Nominal Thread Size0.875 INCHES IN
FSC Application DataENGINE,OIL,AIRCRAFT
Filtering Media DesignMULTIPLE STACKED DISKS SINGLE FILTERING MEDIA RESPONSE
First Discharge Thread DirectionRIGHT-HAND
MaterialCOPPER ALLOY BODY
First Intake Thread Quantity Per Inch14
First Intake Thread Series DesignatorUNF
First Intake Thread DirectionRIGHT-HAND
First Discharge Thread Quantity Per Inch14
Operating Pressure90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
First Intake Nominal Thread Size0.875 INCHES IN
Body Height1.875 INCHES NOMINAL IN
Body Length5.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-018-39873642 INTERCHANGEABLE
Valve,pneumatic Tank
Schrader-Bridgeport International Inc Dba Schrader Automotive
6625-00-051-9029 INTERCHANGEABLE
Galvanometer
4820-00-114-1096 INTERCHANGEABLE
Stem,fluid Valve
5930-00-127-93173642 INTERCHANGEABLE
Switch,code Indicating Wheel
Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch
5310-00-186-7540 INTERCHANGEABLE
Washer,flat
5220-00-332-66593690 INTERCHANGEABLE
Gage,profile
Allison Transmission Inc Dba Allison Transmission, Inc
2990-00-382-8812C26780 INTERCHANGEABLE
Muffler,exhaust
Mitsubishi Caterpillar Forklift America, Inc
3610-00-457-8704 INTERCHANGEABLE
Bottle and Cap Assembly
6640-00-494-3846 INTERCHANGEABLE
Cleaner,instrument Tubing
5305-00-637-65753690 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
Cross-Reference Index
Part NumberManufacturer
3690M Hydro Silica Corp (USA)
3642 Hydro-Aire Aerospace Corp (USA)
03S03753 PRIMARY Falls Filtration Technologies, Inc. (USA)
3690 Hydro Silica Corp (USA)
Related Parts
4820-00-018-3987INTERCHANGEABLE
VALVE,PNEUMATIC TANK
3642
6625-00-051-9029INTERCHANGEABLE
GALVANOMETER
4820-00-114-1096INTERCHANGEABLE
STEM,FLUID VALVE
5930-00-127-9317INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
3642
5310-00-186-7540INTERCHANGEABLE
WASHER,FLAT
5220-00-332-6659INTERCHANGEABLE
GAGE,PROFILE
3690
2990-00-382-8812INTERCHANGEABLE
MUFFLER,EXHAUST
C26780
3610-00-457-8704INTERCHANGEABLE
BOTTLE AND CAP ASSEMBLY
6640-00-494-3846INTERCHANGEABLE
CLEANER,INSTRUMENT TUBING
5305-00-637-6575INTERCHANGEABLE
SCREW,MACHINE
3690
5340-00-733-5014INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
3642
5342-00-862-7169INTERCHANGEABLE
BRACKET,FILTER LOCK

Frequently Asked Questions

What is NSN 2945-00-328-3398?

NSN 2945-00-328-3398 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 2945-00-328-3398?

NSN 2945-00-328-3398 has 4 cross-referenced part numbers: 3690M (Hydro Silica Corp), 3642 (Hydro-Aire Aerospace Corp), 03S03753 (Falls Filtration Technologies, Inc.), 3690 (Hydro Silica Corp).

What NSN replaces 2945-00-328-3398?

There are 12 known substitutes for 2945-00-328-3398: 4820-00-018-3987, 6625-00-051-9029, 4820-00-114-1096 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 03S03753?

Key specifications for 03S03753: Body Outside Diameter: 3.750 INCHES NOMINAL IN; Filtering Element Quantity: 1; Design Type: REUSABLE; Features Provided: BY-PASS VALVE. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2945-00-328-3398 still in active supply?

NSN 2945-00-328-3398 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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