The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-01-277-1978, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Vishay Sprague Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-277-1978 |
| Primary Part Number | 55-2-8-203 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Vishay Sprague Inc |
| Status | ACTIVE |
| Maximum Running Torque | 5.00 INCH-OUNCES IN |
| Electrical Resistance Per Section | 20.0 OHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 150.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.083 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Terminal Length | 0.172 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL |
| Body Width | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Body Height | 0.492 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Maximum Starting Torque | 5.00 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -50.0 TO 50.0 SINGLE SECTION |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.030 INCHES NOMINAL IN |
| Body Length | 0.522 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 1.5 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 9000.0 NOMINAL |
| Bearing Type | BEARING SHAFT |
| Reliability Indicator | NOT ESTABLISHED |
| Cubic Measure | 0.047 CUBIC INCHES |
| Actuator Travel Control Feature | CLUTCH |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| Rotary Actuator Travel in Angular Deg | 9000.0 NOMINAL |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 70.0 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 |
|---|---|
| 55-2-8-203 PRIMARY | Vishay Sprague Inc (USA) |
NSN 5905-01-277-1978 is a Resistor,variable,wire Wound,non, manufactured by Vishay Sprague Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-277-1978 has 1 manufacturer part number on file: 55-2-8-203 (Vishay Sprague Inc).
Key specifications for 55-2-8-203: Maximum Running Torque: 5.00 INCH-OUNCES IN; Electrical Resistance Per Section: 20.0 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 150.0 SINGLE SECTION; Section Quantity: 1. 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.