The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-554-8557, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-554-8557 |
| Primary Part Number | 0026-1253 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| Status | ACTIVE |
| Body Diameter | 1.062 INCHES NOMINAL IN |
| Operating Position | START OF ROTATION |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 25.0 KILOHMS SINGLE SECTION |
| Switch Voltage Rating in Volts | 125.0 |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 120.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.531 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY DELICATE |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Overall Diameter | 1.624 INCHES NOMINAL IN |
| Mounting Method | STANDARD BUSHING |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| Features Provided | SWITCH |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 2.125 INCHES NOMINAL IN |
| Body Length | 0.768 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Switch Type | ROTARY |
| Effective Electrical Rotation in Deg Angular Rotation | 315.0 NOMINAL |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Actuator Travel Control Feature | STOPS |
| Resistance Temp Characteristic Range Per Section in Percent | -3.0 TO 0.0 -55 DEG CELSIUS SINGLE SECTION AND -5.0 TO 10.0 -25 DEG CELSIUS SINGLE SECTION AND -5.0 TO 10.0 25 DEG CELSIUS SINGLE SECTION AND +0.0 TO 3.0 120 DEG CELSIUS SINGLE SECTION |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Switch Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY OPEN, BOTH POSITIONS MAINTAINED |
| 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 |
|---|---|
| 0026-1253 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA) |
| Reference | Meaning |
|---|---|
| 4P1225 | 5/9 Secondary reference Cts Corp of California Dba Cts Electronics Corp Paso Robles Div Electromechanical Group |
NSN 5905-00-554-8557 is a Resistor,variable,nonwire Wound,, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-554-8557 has 1 manufacturer part number on file: 0026-1253 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-058-2398. Verify interchangeability with system specifications before substitution.
Key specifications for 0026-1253: Body Diameter: 1.062 INCHES NOMINAL IN; Operating Position: START OF ROTATION; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 25.0 KILOHMS SINGLE SECTION. 29 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.