The Resistor,thermal, cataloged under National Stock Number 5905-00-594-0899, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-594-0899 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Status | ACTIVE |
| Temp Points for Resistance Readings at Zero Power | -15.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 125.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | -55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 50.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 75.0 CELSIUS FIFTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 100.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC |
| Inclosure Type | HERMETICALLY SEALED |
| Terminal Diameter | 0.020 INCHES NOMINAL IN |
| Resistance Tolerance at a Specified Temp in Percent | -7.0 TO 7.0 THIRD RESISTANCE-TEMPERATURE POINT |
| Terminal Length | 1.200 INCHES MINIMUM IN |
| Zero Power Resistance at Specified Temp | 1.0 KILOHMS FIFTH RESISTANCE-TEMPERATURE POINT |
| Body Outside Diameter | 0.100 INCHES NOMINAL IN |
| Style Designator | ROD |
| Power Dissipation Constant in Milliwatts Per Deg Celsius | 2.5 |
| Zero Power Resistance | 820.000 OHMS |
| Thermal Time Constant in Seconds | 60.0 |
| Ambient Temp at Full Rated Power | 25.0 CELSIUS DEGC |
| Zero Power Resistance Tolerance in Percent at Reference Temp | -5.0 TO 5.0 |
| Maximum Operating Temp | 125.0 CELSIUS DEGC |
| Body Length | 0.285 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Test Data Document | 81349-MILT23648 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.). |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Maximum Power Dissipation Rating | 250.00 MILLIWATTS |
| 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 |
|---|---|
| RTH42ES821K | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-23648/19 | 4/1 Identification reference U.S. Government activity |
| RTH42ES821J | 2/2 Government specification standardization U.S. Government activity |
NSN 5905-00-594-0899 is a Resistor,thermal, classified under FSC 5905, Resistor. Status: active.
Key specifications for 5905-00-594-0899: Temp Points for Resistance Readings at Zero Power: -15.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 125.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: -55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 50.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC. 25 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.