PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FSR-W-25B2Filter,radio Frequency Interfere

Filtron Co Inc Div of Rfi Corp · NSN 5915-00-944-7670 · FSC 5915 · No Item Name Available
Verified by PartsTable
NSN 5915-00-944-7670 — this item is cataloged by the U.S. Government under National Stock Number 5915-00-944-7670. Primary manufacturer part number: FSR-W-25B2.
Features
  • Filter,radio Frequency Interfere — FSC 5915
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 25.000 INCHES NOMINAL IN
  • Vibration Resistance Range in Hertz: +10.0 TO 500.0
  • Body Height: 5.000 INCHES NOMINAL IN
  • Unthreaded Mounting Hole Diameter: 0.688 INCHES NOMINAL IN
  • Maximum Dielectric Withstanding DC Voltage: 1.2 KILOVOLTS AT SEA LEVEL
  • Maximum Voltage Drop Per Function: 2.77 VOLTS AC 2ND RADIO INTERFERENCE AND 6.0 VOLTS DC 2ND RADIO INTERFERENCE SECOND FUNCTION
  • Power Line Frequency Rating Per Function in Hertz: 60.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,radio Frequency Interfere, cataloged under National Stock Number 5915-00-944-7670, is classified within Federal Supply Class 5915 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Filtron Co Inc Div of Rfi Corp. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5915-00-944-7670
Primary Part NumberFSR-W-25B2
Item NameFilter,radio Frequency Interfere
FSC / FSG5915 / 59 — No Item Name Available
ManufacturerFiltron Co Inc Div of Rfi Corp
StatusACTIVE
Distance Between Centerlines of Mounting Facilities Parallel to Body Length25.000 INCHES NOMINAL IN
Vibration Resistance Range in Hertz+10.0 TO 500.0
Body Height5.000 INCHES NOMINAL IN
Unthreaded Mounting Hole Diameter0.688 INCHES NOMINAL IN
Maximum Dielectric Withstanding DC Voltage1.2 KILOVOLTS AT SEA LEVEL
Maximum Voltage Drop Per Function2.77 VOLTS AC 2ND RADIO INTERFERENCE AND 6.0 VOLTS DC 2ND RADIO INTERFERENCE SECOND FUNCTION
Power Line Frequency Rating Per Function in Hertz60.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Load Impedance Per Function50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Inclosure TypeHERMETICALLY SEALED
Principal Circuitry Type Per FunctionINDUCTANCE-CAPACITANCE 2ND RADIO INTERFERENCE SECOND FUNCTION
Functional Terminal Type and Quantity2 TAB, SOLDER LUG INPUT FIRST FUNCTION
Functional Terminal Type and Quantity2 TAB, SOLDER LUG OUTPUT SECOND FUNCTION
Operating Current Rating Per Function in Amps25.0 2ND RADIO INTERFERENCE SECOND FUNCTION
Body MaterialMETAL
Operating Voltage Rating and Type Per Function277.0 VOLTS AC 2ND RADIO INTERFERENCE AND 600.0 VOLTS DC 2ND RADIO INTERFERENCE SECOND FUNCTION
Operating Voltage Rating and Type Per Function277.0 VOLTS AC 1ST RADIO INTERFERENCE AND 600.0 VOLTS DC 1ST RADIO INTERFERENCE FIRST FUNCTION
Source Impedance Rating Per Function50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
Body Width12.250 INCHES NOMINAL IN
Load Impedance Per Function50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
Maximum Voltage Drop Per Function2.77 VOLTS AC 1ST RADIO INTERFERENCE AND 6.0 VOLTS DC 1ST RADIO INTERFERENCE FIRST FUNCTION
Features ProvidedCORROSION RESISTANT
Operating Current Rating Per Function in Amps25.0 1ST RADIO INTERFERENCE FIRST FUNCTION
Maximum Temp Rise25.0 CELSIUS DEGC
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Unpackaged Unit Weight105.000 POUNDS NOMINAL LBS
Principal Circuitry Type Per FunctionINDUCTANCE-CAPACITANCE 1ST RADIO INTERFERENCE FIRST FUNCTION
Power Line Frequency Rating Per Function in Hertz60.0 1ST RADIO INTERFERENCE FIRST FUNCTION
Distance Between Centerlines of Mounting Facilities Parallel to Body Width14.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5915-00-922-9144 INTERCHANGEABLE
Filter,radio Frequency Interfere
5915-00-922-9145FSR-W-50B3N INTERCHANGEABLE
Filter,radio Frequency Interfere
Ems Development Corporation Dba Ems Development Corp
5915-00-922-9148FSR-W-100B4 INTERCHANGEABLE
Filter,radio Frequency Interfere
Ems Development Corporation Dba Ems Development Corp
5915-00-943-8530FSR-W-200B3N INTERCHANGEABLE
Filter,radio Frequency Interfere
Ems Development Corporation Dba Ems Development Corp
5915-00-944-7669FSR-W-25BN INTERCHANGEABLE
Filter,radio Frequency Interfere
Ems Development Corporation Dba Ems Development Corp
5915-00-947-0447 INTERCHANGEABLE
Filter,radio Frequency Interfere
5915-01-034-3494FSR-W-100B3N INTERCHANGEABLE
Filter,radio Frequency Interfere
Ems Development Corporation Dba Ems Development Corp
Cross-Reference Index
Part NumberManufacturer
FSR-W-25B2 Filtron Co Inc Div of Rfi Corp (USA)
MTK2N30 Mtk Electronics Inc (USA)
C20779 Filtron Co Inc Div of Rfi Corp (USA)
Related Parts
5915-00-922-9144INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5915-00-922-9145INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
FSR-W-50B3N
5915-00-922-9148INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
FSR-W-100B4
5915-00-943-8530INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
FSR-W-200B3N
5915-00-944-7669INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
FSR-W-25BN
5915-00-947-0447INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5915-01-034-3494INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
FSR-W-100B3N

Frequently Asked Questions

What is NSN 5915-00-944-7670?

NSN 5915-00-944-7670 is a Filter,radio Frequency Interfere, manufactured by Filtron Co Inc Div of Rfi Corp, classified under FSC 5915 (No Item Name Available). Status: active.

What are the part numbers for NSN 5915-00-944-7670?

NSN 5915-00-944-7670 has 3 cross-referenced part numbers: FSR-W-25B2 (Filtron Co Inc Div of Rfi Corp), MTK2N30 (Mtk Electronics Inc), C20779 (Filtron Co Inc Div of Rfi Corp).

What NSN replaces 5915-00-944-7670?

There are 7 known substitutes for 5915-00-944-7670: 5915-00-922-9144, 5915-00-922-9145, 5915-00-922-9148 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FSR-W-25B2?

Key specifications for FSR-W-25B2: Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 25.000 INCHES NOMINAL IN; Vibration Resistance Range in Hertz: +10.0 TO 500.0; Body Height: 5.000 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.688 INCHES NOMINAL IN. 30 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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