The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-232-7388, 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 26 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-232-7388 |
| Primary Part Number | 2100-1840 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Maximum Running Torque | 1.00 INCH-OUNCES IN |
| Body Diameter | 0.968 INCHES NOMINAL IN |
| Operating Position | START OF ROTATION |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 50.0 KILOHMS SINGLE SECTION |
| Switch Voltage Rating in Volts | 125.0 |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Mounting Method | STANDARD BUSHING |
| Maximum Starting Torque | 6.00 INCH-OUNCES IN |
| Terminal Location | REAR-BOTTOM |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.875 INCHES NOMINAL IN |
| Body Length | 0.750 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.333 FREE AIR SINGLE SECTION |
| Switch Type | ROTARY |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Resistance Tolerance Per Section in Percent | -30.0 TO 30.0 SINGLE SECTION |
| Switch Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY OPEN, BOTH POSITIONS MAINTAINED |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| Mounting Bushing Length | 0.375 INCHES NOMINAL IN |
| Switch Current Type and Rating in Amps | 3.000 AC/DC |
| 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 |
|---|---|
| 2100-1840 PRIMARY | Keysight Technologies Inc (USA) |
| 470-50KPORM30PCT 7/8 IN. SHAFTSW | Clarostat Sensors and Controls (USA) |
| Reference | Meaning |
|---|---|
| 45-50K7-8LGSHAFTWSWITCH | 5/9 Secondary reference Cts Corp |
| 2100-1840 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 45-50K7-8LGSHAFTWSWITCH | 5/1 Secondary reference Cts Corp Electromechanical Div |
| 2100-1840 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
NSN 5905-00-232-7388 is a Resistor,variable,nonwire Wound,, manufactured by Keysight Technologies Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-232-7388 has 2 manufacturer part numbers on file: 2100-1840 (Keysight Technologies Inc), 470-50KPORM30PCT 7/8 IN. SHAFTSW (Clarostat Sensors and Controls).
Key specifications for 2100-1840: Maximum Running Torque: 1.00 INCH-OUNCES IN; Body Diameter: 0.968 INCHES NOMINAL IN; Operating Position: START OF ROTATION; Screw Thread Quantity Per Inch: 32.0. 26 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.