PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

521247Resistor,fixed,composition

Army, United States Department of the Dba Rock Island Arsenal Jmtc · NSN 5905-00-279-1568 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-279-1568 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-279-1568. Primary manufacturer part number: 521247.
Features
  • Resistor,fixed,composition — FSC 5905
  • Test Data Document: 81349-MIL-R-11 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.).
  • Power Dissipation Rating in Watts: 0.500 FREE AIR
  • Inclosure Type: ENCAPSULATED
  • Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC
  • Ambient Temp in Deg Celsius at Zero Percent Rated Power: 110.0
  • Body Diameter: 0.138 INCHES NOMINAL IN
  • Body Length: 0.375 INCHES NOMINAL IN
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,fixed,composition, cataloged under National Stock Number 5905-00-279-1568, 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 Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 11 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-279-1568
Primary Part Number521247
Item NameResistor,fixed,composition
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerArmy, United States Department of the Dba Rock Island Arsenal Jmtc
StatusACTIVE
Test Data Document81349-MIL-R-11 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.).
Power Dissipation Rating in Watts0.500 FREE AIR
Inclosure TypeENCAPSULATED
Ambient Temp at Full Rated Power40.0 CELSIUS DEGC
Ambient Temp in Deg Celsius at Zero Percent Rated Power110.0
Body Diameter0.138 INCHES NOMINAL IN
Body Length0.375 INCHES NOMINAL IN
Terminal TypeWIRE LEAD
Resistance Tolerance in Percent-5.000 TO 5.000
Electrical Resistance180.000 KILOHMS
Style DesignatorAXIAL TERMINAL EACH END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5905-00-104-8333 INTERCHANGEABLE
Resistor,fixed,composition
Cross-Reference Index
Part NumberManufacturer
521247 Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
RC20BF184J Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILR11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
500369 International Telephone and Telegraph Corp Itt Gilfillan Div (USA)
Related Parts
5905-00-104-8333INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION

Frequently Asked Questions

What is NSN 5905-00-279-1568?

NSN 5905-00-279-1568 is a Resistor,fixed,composition, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-279-1568?

NSN 5905-00-279-1568 has 4 cross-referenced part numbers: 521247 (Army, United States Department of the Dba Rock Island Arsenal Jmtc), RC20BF184J (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILR11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 500369 (International Telephone and Telegraph Corp Itt Gilfillan Div).

What NSN replaces 5905-00-279-1568?

There is 1 known substitute for 5905-00-279-1568: 5905-00-104-8333. Verify interchangeability with system specifications before substitution.

What are the specifications of 521247?

Key specifications for 521247: Test Data Document: 81349-MIL-R-11 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.).; Power Dissipation Rating in Watts: 0.500 FREE AIR; Inclosure Type: ENCAPSULATED; Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC. 11 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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