The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-962-0460, 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 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-962-0460 |
| Primary Part Number | 20A2-2144 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Servo Instrument Corporation |
| Status | ACTIVE |
| Body Diameter | 1.250 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 40.0 |
| Electrical Resistance Per Section | 10.0 OHMS ALL SECTIONS |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 100.0 ALL SECTIONS |
| Section Quantity | 2 |
| Mounting Facility Quantity | 2 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL HOLE/SLOT MOUNTED |
| Mounting Hole/stud Circle Diameter | 0.750 INCHES NOMINAL IN |
| Mounting Method | THREADED HOLE(S) |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 ALL SECTIONS |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Features Provided | NONMETALLIC SHAFT |
| Shaft Style | ROUND |
| Actuator Type | DOUBLE ENDED SHAFT |
| Shaft Length | 1.000 INCHES NOMINAL IN |
| Body Length | 1.250 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 3.5 FREE AIR ALL SECTIONS |
| Effective Electrical Rotation in Deg Angular Rotation | 315.0 NOMINAL |
| Screw Thread Diameter | 0.116 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Actuator Travel Control Feature | STOPS |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 ALL SECTIONS |
| Terminal Type and Quantity | 6 TURRET |
| Rotary Actuator Travel in Angular Deg | 330.0 NOMINAL |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 25.0 ALL SECTIONS |
| 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 |
|---|---|
| 20A2-2144 | Servo Instrument Corporation (USA) |
| Reference | Meaning |
|---|---|
| 971DG2 | C/1 Advisory reference — outside the item-of-supply concept Iet Labs Inc |
| 971DG2 | 3/9 Design control — primary reference Genrad Inc |
| 971DG2 | 5/2 Secondary reference U.S. Government activity |
NSN 5905-00-962-0460 is a Resistor,variable,wire Wound,non, manufactured by Servo Instrument Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-962-0460 has 1 manufacturer part number on file: 20A2-2144 (Servo Instrument Corporation).
Key specifications for 20A2-2144: Body Diameter: 1.250 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 40.0; Electrical Resistance Per Section: 10.0 OHMS ALL SECTIONS; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 100.0 ALL SECTIONS. 27 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.