PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D203Resistor,thermal

Therm-O-Disc Inc Sub of Emerson Electric Co · NSN 5905-00-660-6930 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-660-6930 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-660-6930. Primary manufacturer part number: D203.
Features
  • Resistor,thermal — FSC 5905
  • Unthreaded Mounting Hole Diameter: 0.125 INCHES NOMINAL IN
  • Terminal Type and Quantity: 2 WIRE LEAD
  • Maximum Operating Temp: 200.0 CELSIUS DEGC
  • Terminal Diameter: 0.024 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.000 INCHES NOMINAL IN
  • Style Designator: DISK ON SURFACE PLATE
  • Inclosure Type: ENCASED
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,thermal, cataloged under National Stock Number 5905-00-660-6930, 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 Therm-O-Disc Inc Sub of Emerson Electric Co. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 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
NSN5905-00-660-6930
Primary Part NumberD203
Item NameResistor,thermal
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerTherm-O-Disc Inc Sub of Emerson Electric Co
StatusCANCELLED
Unthreaded Mounting Hole Diameter0.125 INCHES NOMINAL IN
Terminal Type and Quantity2 WIRE LEAD
Maximum Operating Temp200.0 CELSIUS DEGC
Terminal Diameter0.024 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.000 INCHES NOMINAL IN
Style DesignatorDISK ON SURFACE PLATE
Inclosure TypeENCASED
Reference Temp in Deg Celsius25.0
Zero Power Resistance at Specified Temp18.0 OHMS FIRST RESISTANCE-TEMPERATURE POINT
Resistance Tolerance at a Specified Temp in Percent-10.0 TO 10.0 ALL RESISTANCE-TEMPERATURE POINTS
Maximum Current Rating25.00 AMPERES
Temp Points for Resistance Readings at Zero Power150.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC
Zero Power Resistance Tolerance in Percent at Reference Temp-5.0 TO 5.0
Zero Power Resistance1.000 KILOHMS
Terminal Length1.250 INCHES NOMINAL IN
Thermal Time Constant in Seconds80.0
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Width0.625 INCHES NOMINAL IN
Ambient Temp at Full Rated Power125.0 CELSIUS DEGC
Power Dissipation Constant in Milliwatts Per Deg Celsius9.0
Maximum Power Dissipation Rating3.00 WATTS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-142-4330B541 INTERCHANGEABLE
Bearing,ball,airframe
Fag Bearings Corporation
4810-00-167-604521181 INTERCHANGEABLE
Body-Seat Assy
Eaton Aerospace Llc
5310-00-638-602621181 INTERCHANGEABLE
Nut,plain,hexagon
Dresser, Llc
5910-00-644-62043118585 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Chrysler Corp Engine and Components Sales Diversified Products Div
3120-00-707-5042707-5042 INTERCHANGEABLE
Bushing,sleeve
Marine Diesel, Inc. Dba Marine Diesel
5985-00-754-96189065953 INTERCHANGEABLE
Radome
Us Army Aviation and Missile Command
3040-00-989-34060200300 INTERCHANGEABLE
Ring,piston
Mississippi Valley Equipment Co
6650-01-059-2737 INTERCHANGEABLE
Oil Standards,special
6130-01-065-2800 INTERCHANGEABLE
Power Supply
5310-01-143-420121181C INTERCHANGEABLE
Washer,recessed
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Cross-Reference Index
Part NumberManufacturer
0839-0008 Hewlett-Packard Company Dba HP (USA)
31D4 Measurement Specialties, Inc. (USA)
D203 Cooper-Hewitt Electric Co Inc (USA)
A0314-05458 Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
31D4 Meas Us Llc Dba Measurement Specialties Div Temperature Products Group (USA)
D203 PRIMARY Therm-O-Disc Inc Sub of Emerson Electric Co (USA)
211-81 Hewlett-Packard Company Dba HP (USA)
666068-456 Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
31D4 Mutron Corp (USA)
203-144-1 Columbia Scientific Corp (USA)
44128-3 Raytheon Company Dba Raytheon (USA)
Related Parts
3110-00-142-4330INTERCHANGEABLE
BEARING,BALL,AIRFRAME
B541
4810-00-167-6045INTERCHANGEABLE
BODY-SEAT ASSY
21181
5310-00-638-6026INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21181
5910-00-644-6204INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
3118585
3120-00-707-5042INTERCHANGEABLE
BUSHING,SLEEVE
707-5042
5985-00-754-9618INTERCHANGEABLE
RADOME
9065953
3040-00-989-3406INTERCHANGEABLE
RING,PISTON
0200300
6650-01-059-2737INTERCHANGEABLE
OIL STANDARDS,SPECIAL
6130-01-065-2800INTERCHANGEABLE
POWER SUPPLY
5310-01-143-4201INTERCHANGEABLE
WASHER,RECESSED
21181C
6550-01-316-0235INTERCHANGEABLE
CULTURE MEDIUM,SALMONELLA SHIGEL
221181
5962-01-364-4525INTERCHANGEABLE
MICROCIRCUIT,MEMORY
44-128-3

Frequently Asked Questions

What is NSN 5905-00-660-6930?

NSN 5905-00-660-6930 is a Resistor,thermal, manufactured by Therm-O-Disc Inc Sub of Emerson Electric Co, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-00-660-6930?

NSN 5905-00-660-6930 has 11 cross-referenced part numbers: 0839-0008 (Hewlett-Packard Company Dba HP), 31D4 (Measurement Specialties, Inc.), D203 (Cooper-Hewitt Electric Co Inc), A0314-05458 (Entron Industries Limited Partnership Dba Entron Industries Property Div), 31D4 (Meas Us Llc Dba Measurement Specialties Div Temperature Products Group) and 6 more.

What NSN replaces 5905-00-660-6930?

There are 12 known substitutes for 5905-00-660-6930: 3110-00-142-4330, 4810-00-167-6045, 5310-00-638-6026 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D203?

Key specifications for D203: Unthreaded Mounting Hole Diameter: 0.125 INCHES NOMINAL IN; Overall Length: 1.250 INCHES NOMINAL IN; Terminal Type and Quantity: 2 WIRE LEAD; Maximum Operating Temp: 200.0 CELSIUS DEGC. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-00-660-6930 still in active supply?

NSN 5905-00-660-6930 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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