The Resistor,thermal, cataloged under National Stock Number 5905-00-642-5634, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-642-5634 |
| Primary Part Number | 618BS729REVA |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Temp Points for Resistance Readings at Zero Power | 0.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 50.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC |
| Inclosure Type | ENCAPSULATED |
| Resistance Tolerance at a Specified Temp in Percent | -10.0 TO 10.0 ALL RESISTANCE-TEMPERATURE POINTS |
| Zero Power Resistance at Specified Temp | 2.4 KILOHMS FIRST RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 260.0 OHMS SECOND RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance | 725.000 OHMS |
| Reliability Indicator | NOT ESTABLISHED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 27D2 | Measurement Specialties, Inc. (USA) |
| 618BS729REVA PRIMARY | Keysight Technologies Inc (USA) |
| 211-52N PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 211-52N | 5/9 Secondary reference Keysight Technologies, Inc. |
| 211-52N | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 27D2 | 5/9 Secondary reference U.S. Government activity |
| 618BS729REVA | 5/9 Secondary reference Keysight Technologies, Inc. |
| 618BS729REVA | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
NSN 5905-00-642-5634 is a Resistor,thermal, manufactured by Keysight Technologies Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-642-5634 has 3 manufacturer part numbers on file: 27D2 (Measurement Specialties, Inc.), 618BS729REVA (Keysight Technologies Inc), 211-52N (Keysight Technologies Inc).
1 possible match (shared part number, not a government interchangeability claim): 2090-01-283-3326. Verify interchangeability with system specifications before substitution.
Key specifications for 618BS729REVA: Temp Points for Resistance Readings at Zero Power: 0.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 50.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC; Inclosure Type: ENCAPSULATED; Resistance Tolerance at a Specified Temp in Percent: -10.0 TO 10.0 ALL RESISTANCE-TEMPERATURE POINTS. 8 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.