PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RN20X1621FResistor,fixed,film

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5905-00-283-8553 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-283-8553 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-283-8553. Primary manufacturer part number: RN20X1621F.
Features
  • Resistor,fixed,film — FSC 5905
  • Temp Coefficient of Resistance in Ppm Per Deg Celsius: -500.0 TO 500.0
  • Specification/standard Data: 81349-MIL-R-10509 GOVERNMENT SPECIFICATION
  • Electrical Resistance: 1.620 KILOHMS
  • Terminal Length: 1.500 INCHES NOMINAL IN
  • Ambient Temp at Full Rated Power: 40.0 CELSIUS DEGC
  • Body Length: 0.594 INCHES NOMINAL IN
  • Body Diameter: 0.172 INCHES NOMINAL IN
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,fixed,film, cataloged under National Stock Number 5905-00-283-8553, 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 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-283-8553
Primary Part NumberRN20X1621F
Item NameResistor,fixed,film
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Temp Coefficient of Resistance in Ppm Per Deg Celsius-500.0 TO 500.0
Specification/standard Data81349-MIL-R-10509 GOVERNMENT SPECIFICATION
Electrical Resistance1.620 KILOHMS
Terminal Length1.500 INCHES NOMINAL IN
Ambient Temp at Full Rated Power40.0 CELSIUS DEGC
Body Length0.594 INCHES NOMINAL IN
Body Diameter0.172 INCHES NOMINAL IN
Test Data Document81349-MIL-R-10509 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
Reliability IndicatorNOT ESTABLISHED
Terminal TypeWIRE LEAD
Inclosure TypeENCAPSULATED
Ambient Temp in Deg Celsius at Zero Percent Rated Power120.0
Style DesignatorAXIAL TERMINAL EACH END
Resistance Tolerance in Percent-1.000 TO 1.000
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 105.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5905-00-142-0931 INTERCHANGEABLE
Resistor,fixed,film
5905-00-279-8169 INTERCHANGEABLE
Resistor,fixed,film
5905-00-295-3004 INTERCHANGEABLE
Resistor,fixed,film
5905-00-451-7414 INTERCHANGEABLE
Resistor,fixed,film
Cross-Reference Index
Part NumberManufacturer
RN20X1621F Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
GA50083A1621 American Telephone and Telegraph Co (USA)
MIL-R-10509 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
GA50083A1621 At and T Corp (USA)
BL173882 At and T Corp (USA)
BL173882 American Telephone and Telegraph Co (USA)
BL173882-1621 American Telephone and Telegraph Co (USA)
Related Parts
5905-00-142-0931INTERCHANGEABLE
RESISTOR,FIXED,FILM
5905-00-279-8169INTERCHANGEABLE
RESISTOR,FIXED,FILM
5905-00-295-3004INTERCHANGEABLE
RESISTOR,FIXED,FILM
5905-00-451-7414INTERCHANGEABLE
RESISTOR,FIXED,FILM

Frequently Asked Questions

What is NSN 5905-00-283-8553?

NSN 5905-00-283-8553 is a Resistor,fixed,film, 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: active.

What are the part numbers for NSN 5905-00-283-8553?

NSN 5905-00-283-8553 has 7 cross-referenced part numbers: RN20X1621F (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), GA50083A1621 (American Telephone and Telegraph Co), MIL-R-10509 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), GA50083A1621 (At and T Corp), BL173882 (At and T Corp) and 2 more.

What NSN replaces 5905-00-283-8553?

There are 4 known substitutes for 5905-00-283-8553: 5905-00-142-0931, 5905-00-279-8169, 5905-00-295-3004 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RN20X1621F?

Key specifications for RN20X1621F: Temp Coefficient of Resistance in Ppm Per Deg Celsius: -500.0 TO 500.0; Specification/standard Data: 81349-MIL-R-10509 GOVERNMENT SPECIFICATION; Electrical Resistance: 1.620 KILOHMS; Terminal Length: 1.500 INCHES NOMINAL IN. 16 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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