The Resistor,thermal, cataloged under National Stock Number 5905-01-124-9431, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-124-9431 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Status | ACTIVE |
| Temp Points for Resistance Readings at Zero Power | -55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT-55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | -15.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT-15.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 100.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT100.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 125.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT125.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 50.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT50.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 75.0 CELSIUS FIFTH RESISTANCE-TEMPERATURE POINT75.0 CELSIUS FIFTH RESISTANCE-TEMPERATURE POINT DEGC |
| Inclosure Type | ENCAPSULATED |
| Terminal Diameter | 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN |
| Resistance Tolerance at a Specified Temp in Percent | -20.0 TO 20.0 SEVENTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -17.0 TO 17.0 SIXTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -12.0 TO 12.0 FOURTH RESISTANCE-TEMPERATURE POINT-12.0 TO 12.0 FOURTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -12.0 TO 12.0 THIRD RESISTANCE-TEMPERATURE POINT-12.0 TO 12.0 THIRD RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -14.0 TO 14.0 SECOND RESISTANCE-TEMPERATURE POINT-14.0 TO 14.0 SECOND RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -20.0 TO 20.0 FIRST RESISTANCE-TEMPERATURE POINT-20.0 TO 20.0 FIRST RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -20.0 TO 20.0 SEVENTH RESISTANCE-TEMPERATURE POINT-14.0 TO 14.0 FIFTH RESISTANCE-TEMPERATURE POINT |
| Terminal Length | 1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN |
| Zero Power Resistance at Specified Temp | 12.5 OHMS FIFTH RESISTANCE-TEMPERATURE POINT12.5 OHMS FIFTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 193.8 OHMS THIRD RESISTANCE-TEMPERATURE POINT193.8 OHMS THIRD RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 27.5 OHMS FOURTH RESISTANCE-TEMPERATURE POINT27.5 OHMS FOURTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 3.4 OHMS SEVENTH RESISTANCE-TEMPERATURE POINT3.4 OHMS SEVENTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 3.7 KILOHMS FIRST RESISTANCE-TEMPERATURE POINT3.7 KILOHMS FIRST RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 392.4 OHMS SECOND RESISTANCE-TEMPERATURE POINT392.4 OHMS SECOND RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 6.3 OHMS SIXTH RESISTANCE-TEMPERATURE POINT6.3 OHMS SIXTH RESISTANCE-TEMPERATURE POINT |
| Body Outside Diameter | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Body Width | 0.260 INCHES NOMINAL0.260 INCHES NOMINAL IN |
| Style Designator | SPHERICAL |
| Power Dissipation Constant in Milliwatts Per Deg Celsius | 5.05.0 |
| Zero Power Resistance | 68.000 OHMS |
| Thermal Time Constant in Seconds | 80.080.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-T-23648/1 | 5/9 Secondary reference U.S. Government activity |
| RTH06AS680K | 2/2 Government specification standardization U.S. Government activity |
| RTH06AS680K1 | 5/9 Secondary reference U.S. Government activity |
| 714-3237-050 | C/1 Advisory reference — outside the item-of-supply concept Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| MIL-PRF-23648/1 | 4/1 Identification reference U.S. Government activity |
NSN 5905-01-124-9431 is a Resistor,thermal, classified under FSC 5905, Resistor. Status: active.
Key specifications for 5905-01-124-9431: Temp Points for Resistance Readings at Zero Power: -55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT-55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: -15.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT-15.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 100.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT100.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT DEGC. 30 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.