The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-243-8930, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cts Corp Electromechanical Div. Government technical data includes 26 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-243-8930 |
| Primary Part Number | X201R501B |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Cts Corp Electromechanical Div |
| Status | ACTIVE |
| Body Diameter | 0.938 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 500.0 OHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 85.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.375 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Mounting Method | STANDARD BUSHING |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.125 INCHES NOMINAL IN |
| Body Length | 0.594 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.25 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 260.0 NOMINAL |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Actuator Travel Control Feature | STOPS |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Rotary Actuator Travel in Angular Deg | 260.0 NOMINAL |
| Mounting Bushing Length | 0.375 INCHES NOMINAL IN |
| Device Design Type | ERR-030 AT 6:00 OCLOCKUNABLE TO DECODE |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 55.0 SINGLE SECTION |
| 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 |
|---|---|
| X201R501B PRIMARY | Cts Corp Electromechanical Div (USA) |
| Reference | Meaning |
|---|---|
| X201-500-20PCT | C/1 Advisory reference — outside the item-of-supply concept Cts Corp |
| X201R501B | 3/9 Design control — primary reference Cts Corp |
| 7000-501-000 | 5/9 Secondary reference Mepcopal Co a Joint Venture |
| 556203-010 | C/1 Advisory reference — outside the item-of-supply concept Singer Co the Instrumentation Div |
| 10046-1 | C/1 Advisory reference — outside the item-of-supply concept Giga-Tronics Incorporated Dba Giga-Tronics |
| X201+500+20PCT | C/1 Advisory reference — outside the item-of-supply concept Cts Corp |
NSN 5905-00-243-8930 is a Resistor,variable,nonwire Wound,, manufactured by Cts Corp Electromechanical Div, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-243-8930 has 1 manufacturer part number on file: X201R501B (Cts Corp Electromechanical Div).
3 possible matches (shared part number, not a government interchangeability claim): 5962-01-065-7792, 5905-01-090-4499, 4820-01-107-1739. Verify interchangeability with system specifications before substitution.
Key specifications for X201R501B: Body Diameter: 0.938 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 500.0 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 85.0 SINGLE SECTION. 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.