The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-502-6950, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Servo Instrument Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-502-6950 |
| Primary Part Number | 70SC1-1683 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Servo Instrument Corporation |
| Status | ACTIVE |
| Maximum Running Torque | 0.80 INCH-OUNCES IN |
| Body Diameter | 4.375 INCHES NOMINAL IN |
| Lateral Runout | 0.003 INCHES IN |
| Electrical Resistance Per Section | 34.400 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Function Conformity Tolerance Per Section | -0.50 TO 0.50 SINGLE SECTION |
| Shaft End Play | 0.00300 INCHES IN |
| First Flat Length | 0.312 INCHES NOMINAL IN |
| Mounting Method | TERMINAL |
| Maximum Starting Torque | 1.00 INCH-OUNCES IN |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND, FLATTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 1.125 INCHES NOMINAL IN |
| Body Length | 4.312 INCHES NOMINAL IN |
| Shaft Runout | 0.001 INCHES IN |
| Power Dissipation Rating Per Section in Watts | 3.5 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 352.0 NOMINAL |
| Pilot Diameter Runout | 0.00150 INCHES IN |
| Bearing Type | BALL SHAFT |
| Reliability Indicator | NOT ESTABLISHED |
| Shaft Radial Play | 0.002 INCHES IN |
| Actuator Travel Control Feature | CONTINUOUS MOTION |
| Resistance Tolerance Per Section in Percent | -1.0 TO 1.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 TURRET |
| Rotary Actuator Travel in Angular Deg | 360.0 NOMINAL |
| 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 |
|---|---|
| 70SC1-1683 PRIMARY | Servo Instrument Corporation (USA) |
| Reference | Meaning |
|---|---|
| RL14MS | 5/9 Secondary reference Cognitive Resources Inc Dba Gamewell Co the |
NSN 5905-00-502-6950 is a Resistor,variable,wire Wound,pre, manufactured by Servo Instrument Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-502-6950 has 1 manufacturer part number on file: 70SC1-1683 (Servo Instrument Corporation).
Key specifications for 70SC1-1683: Maximum Running Torque: 0.80 INCH-OUNCES IN; Body Diameter: 4.375 INCHES NOMINAL IN; Lateral Runout: 0.003 INCHES IN; Electrical Resistance Per Section: 34.400 KILOHMS SINGLE SECTION. 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.