The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-01-643-3906, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Precision Resistor Co Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-643-3906 |
| Primary Part Number | HR258N-90KOHMPORM0.01PCT |
| Item Name | Resistor,fixed,wire Wound |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Precision Resistor Co Inc |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -0.1 TO 0.1 |
| Body Diameter | 0.250 INCHES NOMINAL IN |
| Electrical Resistance | 0.1 OHMS |
| Inclosure Type | ENCASED |
| Terminal Type | WIRE LEAD |
| Reactance Characteristic | NONINDUCTIVE |
| Style Designator | AXIAL TERMINALS ONE END |
| Power Dissipation Rating in Watts | 0.33 FREE AIR |
| Ambient Temp at Full Rated Power | 125.0 CELSIUS DEGC |
| Body Length | 0.500 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 145.0 |
| 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 |
|---|---|
| HR258N-90KOHMPORM0.01PCT PRIMARY | Precision Resistor Co Inc (USA) |
| Reference | Meaning |
|---|---|
| MIL-R-39005/4 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-01-643-3906 is a Resistor,fixed,wire Wound, manufactured by Precision Resistor Co Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-643-3906 has 1 manufacturer part number on file: HR258N-90KOHMPORM0.01PCT (Precision Resistor Co Inc).
Key specifications for HR258N-90KOHMPORM0.01PCT: Resistance Tolerance in Percent: -0.1 TO 0.1; Body Diameter: 0.250 INCHES NOMINAL IN; Electrical Resistance: 0.1 OHMS; Inclosure Type: ENCASED. 12 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.