The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-01-340-9048, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments. Government technical data includes 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-340-9048 |
| Primary Part Number | 55-20-4541-1 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments |
| Status | ACTIVE |
| Maximum Running Torque | 32.00 INCH-OUNCES IN |
| Body Diameter | 2.000 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Lateral Runout | 0.002 INCHES IN |
| Electrical Resistance Per Section | 1.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.2495 INCHES MINIMUM AND 0.2498 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Function Conformity Tolerance Per Section | -0.30 TO 0.30 SINGLE SECTION |
| Precious Material | GOLD AND SILVER |
| Mounting Method | STANDARD BUSHING |
| Maximum Starting Torque | 96.00 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.375 INCHES NOMINAL IN |
| Body Length | 0.969 INCHES NOMINAL IN |
| Maximum Stop Torque | 80.00 INCH-OUNCES IN |
| Shaft Runout | 0.002 INCHES IN |
| Power Dissipation Rating Per Section in Watts | 4.0 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 270.0 NOMINAL |
| Pilot Diameter Runout | 0.001 INCHES IN |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Bearing Type | BEARING SHAFT |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| 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 |
|---|---|
| 55-20-4541-1 PRIMARY | Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments (USA) |
NSN 5905-01-340-9048 is a Resistor,variable,wire Wound,pre, manufactured by Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-340-9048 has 1 manufacturer part number on file: 55-20-4541-1 (Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments).
Key specifications for 55-20-4541-1: Maximum Running Torque: 32.00 INCH-OUNCES IN; Body Diameter: 2.000 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Lateral Runout: 0.002 INCHES IN. 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.