PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B603301006Resistor,thermal

Kearfott Corporation Div Guidance and Navigation Division · NSN 5905-00-139-1820 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-139-1820 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-139-1820. Primary manufacturer part number: B603301006.
Features
  • Resistor,thermal — FSC 5905
  • Thermal Time Constant in Seconds: 10.0
  • Zero Power Resistance at Specified Temp: 2.4 KILOHMS FIFTH RESISTANCE-TEMPERATURE POINT
  • Power Dissipation Constant in Milliwatts Per Deg Celsius: 1.0
  • Temp Points for Resistance Readings at Zero Power: 125.0 CELSIUS NINTH RESISTANCE-TEMPERATURE POINT DEGC
  • Zero Power Resistance at Specified Temp: 53.1 KILOHMS SECOND RESISTANCE-TEMPERATURE POINT
  • Temp Points for Resistance Readings at Zero Power: -30.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC
  • Temp Points for Resistance Readings at Zero Power: -10.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,thermal, cataloged under National Stock Number 5905-00-139-1820, 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 Kearfott Corporation Div Guidance and Navigation Division. Government technical data includes 30 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
NSN5905-00-139-1820
Primary Part NumberB603301006
Item NameResistor,thermal
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerKearfott Corporation Div Guidance and Navigation Division
StatusACTIVE
Thermal Time Constant in Seconds10.0
Zero Power Resistance at Specified Temp2.4 KILOHMS FIFTH RESISTANCE-TEMPERATURE POINT
Power Dissipation Constant in Milliwatts Per Deg Celsius1.0
Temp Points for Resistance Readings at Zero Power125.0 CELSIUS NINTH RESISTANCE-TEMPERATURE POINT DEGC
Zero Power Resistance at Specified Temp53.1 KILOHMS SECOND RESISTANCE-TEMPERATURE POINT
Temp Points for Resistance Readings at Zero Power-30.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC
Temp Points for Resistance Readings at Zero Power-10.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC
Zero Power Resistance at Specified Temp16.6 KILOHMS THIRD RESISTANCE-TEMPERATURE POINT
Temp Points for Resistance Readings at Zero Power-60.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC
Temp Points for Resistance Readings at Zero Power50.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT DEGC
Zero Power Resistance at Specified Temp6.0 KILOHMS FOURTH RESISTANCE-TEMPERATURE POINT
Temp Points for Resistance Readings at Zero Power70.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT DEGC
Zero Power Resistance at Specified Temp203.8 OHMS EIGHTH RESISTANCE-TEMPERATURE POINT
Temp Points for Resistance Readings at Zero Power100.0 CELSIUS EIGHTH RESISTANCE-TEMPERATURE POINT DEGC
Temp Points for Resistance Readings at Zero Power150.0 CELSIUS TENTH RESISTANCE-TEMPERATURE POINT DEGC
Resistance Tolerance at a Specified Temp in Percent-0.9 TO 0.9 EIGHTH RESISTANCE-TEMPERATURE POINT
Terminal Type and Quantity2 WIRE LEAD
Resistance Tolerance at a Specified Temp in Percent-0.9 TO 0.9 FOURTH RESISTANCE-TEMPERATURE POINT
Zero Power Resistance at Specified Temp105.2 OHMS NINTH RESISTANCE-TEMPERATURE POINT
Style DesignatorBEAD
Inclosure TypeENCAPSULATED
Resistance Tolerance at a Specified Temp in Percent-2.1 TO 2.1 SECOND RESISTANCE-TEMPERATURE POINT
Resistance Tolerance at a Specified Temp in Percent-0.7 TO 0.7 SIXTH RESISTANCE-TEMPERATURE POINT
Zero Power Resistance Tolerance in Percent at Reference Temp-1.02 TO 1.02
Zero Power Resistance3.000 KILOHMS
Resistance Tolerance at a Specified Temp in Percent-2.2 TO 2.2 TENTH RESISTANCE-TEMPERATURE POINT
Zero Power Resistance at Specified Temp55.6 OHMS TENTH RESISTANCE-TEMPERATURE POINT
Resistance Tolerance at a Specified Temp in Percent-0.8 TO 0.8 FIFTH RESISTANCE-TEMPERATURE POINT
Resistance Tolerance at a Specified Temp in Percent-1.5 TO 1.5 NINTH RESISTANCE-TEMPERATURE POINT
Resistance Tolerance at a Specified Temp in Percent-1.3 TO 1.3 THIRD RESISTANCE-TEMPERATURE POINT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-189-9262 INTERCHANGEABLE
Drill,twist
5360-00-237-581444087 INTERCHANGEABLE
Spring,helical,compression
Cae Usa Inc.
5950-00-387-310444087 INTERCHANGEABLE
Coil,electrical
L3harris Technologies, Inc Div Space & Airborne Systems
7520-01-058-99777520-01-058-9977 INTERCHANGEABLE
Pen,ball-Point
National Industries for the Blind
5950-01-072-2260732121-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
5340-01-340-491444087 INTERCHANGEABLE
Stop,mechanical
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6105-01-370-36824-4087 INTERCHANGEABLE
Motor,alternating Current
Bacharach, Inc.
Cross-Reference Index
Part NumberManufacturer
44087 Ysi Inc (USA)
B603301006 PRIMARY Kearfott Corporation Div Guidance and Navigation Division (USA)
44005X Ysi Inc (USA)
Related Parts
5133-00-189-9262INTERCHANGEABLE
DRILL,TWIST
5360-00-237-5814INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
44087
5950-00-387-3104INTERCHANGEABLE
COIL,ELECTRICAL
44087
7520-01-058-9977INTERCHANGEABLE
PEN,BALL-POINT
7520-01-058-9977
5950-01-072-2260INTERCHANGEABLE
TRANSFORMER,POWER
732121-1
5340-01-340-4914INTERCHANGEABLE
STOP,MECHANICAL
44087
6105-01-370-3682INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4-4087

Frequently Asked Questions

What is NSN 5905-00-139-1820?

NSN 5905-00-139-1820 is a Resistor,thermal, manufactured by Kearfott Corporation Div Guidance and Navigation Division, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-139-1820?

NSN 5905-00-139-1820 has 3 cross-referenced part numbers: 44087 (Ysi Inc), B603301006 (Kearfott Corporation Div Guidance and Navigation Division), 44005X (Ysi Inc).

What NSN replaces 5905-00-139-1820?

There are 7 known substitutes for 5905-00-139-1820: 5133-00-189-9262, 5360-00-237-5814, 5950-00-387-3104 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B603301006?

Key specifications for B603301006: Thermal Time Constant in Seconds: 10.0; Zero Power Resistance at Specified Temp: 2.4 KILOHMS FIFTH RESISTANCE-TEMPERATURE POINT; Power Dissipation Constant in Milliwatts Per Deg Celsius: 1.0; Temp Points for Resistance Readings at Zero Power: 125.0 CELSIUS NINTH RESISTANCE-TEMPERATURE POINT DEGC. 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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