The Resistor,thermal, cataloged under National Stock Number 5905-00-959-6503, 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 Esco Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-959-6503 |
| Primary Part Number | 20-1089 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — No Item Name Available |
| Manufacturer | Esco Inc |
| Status | ACTIVE |
| Temp Points for Resistance Readings at Zero Power | 10.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC |
| Reliability Indicator | NOT ESTABLISHED |
| Thread Length | 0.281 INCHES NOMINAL IN |
| Temp Points for Resistance Readings at Zero Power | -10.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | -30.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 100.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 40.0 CELSIUS FIFTH RESISTANCE-TEMPERATURE POINT DEGC |
| Zero Power Resistance at Specified Temp | 4.9 MEGOHMS THIRD RESISTANCE-TEMPERATURE POINT |
| Terminal Diameter | 0.020 INCHES NOMINAL IN |
| Maximum Operating Temp | 200.0 CELSIUS DEGC |
| Ambient Temp at Full Rated Power | 25.0 CELSIUS DEGC |
| Terminal Length | 12.000 INCHES NOMINAL IN |
| Probe Diameter | 0.250 INCHES NOMINAL IN |
| Body Length | 0.375 INCHES NOMINAL IN |
| Thermal Time Constant in Seconds | 22.0 |
| Power Dissipation Constant in Milliwatts Per Deg Celsius | 1.7 |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| Probe Length | 3.000 INCHES NOMINAL IN |
| Mounting Thread Quantity | 32 PER INCH |
| Zero Power Resistance at Specified Temp | 1.5 MEGOHMS FOURTH RESISTANCE-TEMPERATURE POINT |
| Temp Points for Resistance Readings at Zero Power | -60.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC |
| Resistance Tolerance at a Specified Temp in Percent | -15.2 TO 15.2 FIRST RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 5.7 KILOHMS NINTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -9.2 TO 9.2 SIXTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 344.5 KILOHMS FIFTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -14.3 TO 14.3 NINTH RESISTANCE-TEMPERATURE POINT |
| Temp Points for Resistance Readings at Zero Power | 70.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT DEGC |
| Resistance Tolerance at a Specified Temp in Percent | -11.1 TO 11.1 SECOND RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -8.6 TO 8.6 THIRD RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -11.3 TO 11.3 SEVENTH RESISTANCE-TEMPERATURE POINT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20-1089 | Esco Inc (USA) |
| 20-1089 | Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging (USA) |
| 20-1089 | Wacline Division of Simmonds Precision Products Inc (USA) |
| 99931SCEE101-3 | Northrop Grumman Systems Corporation (USA) |
NSN 5905-00-959-6503 is a Resistor,thermal, manufactured by Esco Inc, classified under FSC 5905 (No Item Name Available). Status: active.
NSN 5905-00-959-6503 has 4 cross-referenced part numbers: 20-1089 (Esco Inc), 20-1089 (Jewell Instruments, Llc Dba Modutec Use CAGE Code 33005 for Cataloging), 20-1089 (Wacline Division of Simmonds Precision Products Inc), 99931SCEE101-3 (Northrop Grumman Systems Corporation).
There are 6 known substitutes for 5905-00-959-6503: 3110-00-183-9914, 5315-00-352-6005, 5935-00-402-1481 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20-1089: Temp Points for Resistance Readings at Zero Power: 10.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC; Reliability Indicator: NOT ESTABLISHED; Thread Length: 0.281 INCHES NOMINAL IN; Temp Points for Resistance Readings at Zero Power: -10.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC. 30 total characteristics are documented in the Federal Logistics Information System.