The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-01-643-4958, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Precision Electronic Coil Mfg. Co Dba Pacific Resistor Company. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-643-4958 |
| Primary Part Number | 50CH-49.0K-1%-50W |
| Item Name | Resistor,fixed,wire Wound |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Precision Electronic Coil Mfg. Co Dba Pacific Resistor Company |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -1.0 TO 1.0 |
| Electrical Resistance | 49.0 KILOHMS |
| Terminal Type | SOLDER STUD |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 1.562 INCHES NOMINAL IN |
| Style Designator | AXIAL TERMINAL (S) |
| Power Dissipation Rating in Watts | 50.0 FREE AIR |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 0.844 INCHES NOMINAL IN |
| 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 |
|---|---|
| 93093 | Espey Mfg and Electronics Corp (USA) |
| 50CH-49.0K-1%-50W PRIMARY | Precision Electronic Coil Mfg. Co Dba Pacific Resistor Company (USA) |
NSN 5905-01-643-4958 is a Resistor,fixed,wire Wound, manufactured by Precision Electronic Coil Mfg. Co Dba Pacific Resistor Company, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-643-4958 has 2 manufacturer part numbers on file: 93093 (Espey Mfg and Electronics Corp), 50CH-49.0K-1%-50W (Precision Electronic Coil Mfg. Co Dba Pacific Resistor Company).
Key specifications for 50CH-49.0K-1%-50W: Resistance Tolerance in Percent: -1.0 TO 1.0; Electrical Resistance: 49.0 KILOHMS; Terminal Type: SOLDER STUD; Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 1.562 INCHES NOMINAL IN. 7 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.