PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18125Filter,low Pass

Freed Transformer Co · NSN 5915-00-255-2057 · FSC 5915 · No Item Name Available
Verified by PartsTable
NSN 5915-00-255-2057 — this item is cataloged by the U.S. Government under National Stock Number 5915-00-255-2057. Primary manufacturer part number: 18125.
Features
  • Filter,low Pass — FSC 5915
  • Maximum Dielectric Withstanding DC Voltage: 500.0 VOLTS AT SEA LEVEL
  • Body Material: METAL
  • Inclosure Type: ENCASED
  • Body Surface Treatment: TIN
  • Mounting Facility Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Frequency Band Width Per Function: 1.00 HERTZ BLANK AND 5.60 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
  • Functional Terminal Type and Quantity: 1 TAB, SOLDER LUG GROUND THIRD FUNCTION
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,low Pass, cataloged under National Stock Number 5915-00-255-2057, 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 Freed Transformer Co. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5915-00-255-2057
Primary Part Number18125
Item NameFilter,low Pass
FSC / FSG5915 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Maximum Dielectric Withstanding DC Voltage500.0 VOLTS AT SEA LEVEL
Body MaterialMETAL
Inclosure TypeENCASED
Body Surface TreatmentTIN
Mounting Facility Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Frequency Band Width Per Function1.00 HERTZ BLANK AND 5.60 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Functional Terminal Type and Quantity1 TAB, SOLDER LUG GROUND THIRD FUNCTION
Reference Frequency Per Function2.8 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED
Nominal Thread Size0.138 INCHES IN
Body Length3.500 INCHES NOMINAL IN
Functional Terminal Type and Quantity1 TAB, SOLDER LUG OUTPUT SECOND FUNCTION
Body Height3.375 INCHES NOMINAL IN
Input Impedance Per Function W/load50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.750 INCHES NOMINAL IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Width2.000 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Functional Terminal Type and Quantity1 TAB, SOLDER LUG INPUT FIRST FUNCTION
Output Impedance Per Function W/source Across Input50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
Style DesignatorRECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE
Body Width2.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5355-00-160-5926 INTERCHANGEABLE
Knob
3120-00-163-03499118125 INTERCHANGEABLE
Bushing
Alfa Laval Inc
5325-00-185-0004 INTERCHANGEABLE
Grommet,nonmetallic
3110-00-555-5339 INTERCHANGEABLE
Bearing,ball,annular
4730-01-190-388218125 INTERCHANGEABLE
Packing Nut
Hein Werner Corp
3110-01-436-3448181-25 INTERCHANGEABLE
Bearing,ball,annular
Rix Industries
5999-01-567-630418-125 INTERCHANGEABLE
Contact,electrical
Power Connector Llc
6530-01-587-7324M11D020 INTERCHANGEABLE
Sterilizer,surgical Instrument
Midmark Corporation Dba Midmark Corp
Cross-Reference Index
Part NumberManufacturer
18125 PRIMARY Freed Transformer Co (USA)
Related Parts
5355-00-160-5926INTERCHANGEABLE
KNOB
3120-00-163-0349INTERCHANGEABLE
BUSHING
9118125
5325-00-185-0004INTERCHANGEABLE
GROMMET,NONMETALLIC
3110-00-555-5339INTERCHANGEABLE
BEARING,BALL,ANNULAR
4730-01-190-3882INTERCHANGEABLE
PACKING NUT
18125
3110-01-436-3448INTERCHANGEABLE
BEARING,BALL,ANNULAR
181-25
5999-01-567-6304INTERCHANGEABLE
CONTACT,ELECTRICAL
18-125
6530-01-587-7324INTERCHANGEABLE
STERILIZER,SURGICAL INSTRUMENT
M11D020

Frequently Asked Questions

What is NSN 5915-00-255-2057?

NSN 5915-00-255-2057 is a Filter,low Pass, manufactured by Freed Transformer Co, classified under FSC 5915 (No Item Name Available). Status: active.

What are the part numbers for NSN 5915-00-255-2057?

NSN 5915-00-255-2057 has 1 cross-referenced part number: 18125 (Freed Transformer Co).

What NSN replaces 5915-00-255-2057?

There are 8 known substitutes for 5915-00-255-2057: 5355-00-160-5926, 3120-00-163-0349, 5325-00-185-0004 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18125?

Key specifications for 18125: Maximum Dielectric Withstanding DC Voltage: 500.0 VOLTS AT SEA LEVEL; Body Material: METAL; Inclosure Type: ENCASED; Body Surface Treatment: TIN. 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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