PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MFB305Resistor,fixed,wire Wound

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5905-00-501-9146 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-501-9146 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-501-9146. Primary manufacturer part number: MFB305.
Features
  • Resistor,fixed,wire Wound — FSC 5905
  • Temp Range of Temp Coefficient in Deg Celsius: -55.0 TO 110.0
  • Terminal Length: 0.516 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Body Diameter: 1.312 INCHES NOMINAL IN
  • Ambient Temp in Deg Celsius at Zero Percent Rated Power: 110.0
  • Ambient Temp at Full Rated Power: 85.0 CELSIUS DEGC
  • Body Length: 4.188 INCHES NOMINAL IN
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-00-501-9146, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN5905-00-501-9146
Primary Part NumberMFB305
Item NameResistor,fixed,wire Wound
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 110.0
Terminal Length0.516 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Body Diameter1.312 INCHES NOMINAL IN
Ambient Temp in Deg Celsius at Zero Percent Rated Power110.0
Ambient Temp at Full Rated Power85.0 CELSIUS DEGC
Body Length4.188 INCHES NOMINAL IN
Power Dissipation Rating in Watts5.000 FREE AIR
Terminal TypeFERRULE
Style DesignatorAXIAL TERMINAL EACH END
Inclosure TypeENCAPSULATED
Specification/standard Data81349-MIL-R-29/A GOVERNMENT SPECIFICATION
Test Data Document81349-MIL-R-29A SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). A
Electrical Resistance3.000 MEGOHMS
Temp Coefficient of Resistance in Ppm Per Deg Celsius-50.0 TO 200.0
Resistance Tolerance in Percent-5.000 TO 5.000
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5905-00-086-1921 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-100-9048 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-101-0743 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-101-0745 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-101-0746 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-101-0754 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-101-0755 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-101-0757 INTERCHANGEABLE
Resistor,fixed,wire Wound
5315-00-131-7958532174-1 INTERCHANGEABLE
Pin,hollow
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5905-00-191-4935 INTERCHANGEABLE
Resistor,fixed,wire Wound
Cross-Reference Index
Part NumberManufacturer
MFB305 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
53-2174 Wilcox Gay Corp
MILR29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-29 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5905-00-086-1921INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-100-9048INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-101-0743INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-101-0745INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-101-0746INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-101-0754INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-101-0755INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-101-0757INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5315-00-131-7958INTERCHANGEABLE
PIN,HOLLOW
532174-1
5905-00-191-4935INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-191-4936INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-191-4939INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND

Frequently Asked Questions

What is NSN 5905-00-501-9146?

NSN 5905-00-501-9146 is a Resistor,fixed,wire Wound, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-00-501-9146?

NSN 5905-00-501-9146 has 4 cross-referenced part numbers: MFB305 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 53-2174 (Wilcox Gay Corp), MILR29 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-29 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5905-00-501-9146?

There are 12 known substitutes for 5905-00-501-9146: 5905-00-086-1921, 5905-00-100-9048, 5905-00-101-0743 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MFB305?

Key specifications for MFB305: Temp Range of Temp Coefficient in Deg Celsius: -55.0 TO 110.0; Terminal Length: 0.516 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Body Diameter: 1.312 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-00-501-9146 still in active supply?

NSN 5905-00-501-9146 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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