The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-901-3249, 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 30 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-901-3249 |
| Primary Part Number | 55-4-12-500 |
| 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 | 50.0 OHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 150.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | RECTANGULAR |
| Terminal Length | 0.172 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL |
| Body Width | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Body Height | 0.495 INCHES MINIMUM AND 0.505 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 | LEFT ADJACENT SIDE TWO ROWS LOCATION NOT OTHERWISE SPECIFIED |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Features Provided | HUMIDITY PROOF |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Center to Center Distance Between Terminal Rows | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Shaft Length | 0.030 INCHES MAXIMUM IN |
| Body Length | 0.495 INCHES MINIMUM AND 0.505 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 | 15120.0 NOMINAL |
| Bearing Type | SLEEVE SHAFT |
| Reliability Indicator | NOT ESTABLISHED |
| Cubic Measure | 0.058 CUBIC INCHES |
| Actuator Travel Control Feature | CONTINUOUS MOTION |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| 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 |
|---|---|
| 55-9-115-500 | Vishay Sprague Inc (USA) |
| 55-4-12-500 PRIMARY | Vishay Sprague Inc (USA) |
| A25A209-160-101 | Goodyear Tire and Rubber Co the (USA) |
| Reference | Meaning |
|---|---|
| 55-9-115-500 | 5/9 Secondary reference IV-Electronic Klaus Vespermann Kg |
| A25A209-160-101 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
| 55-4-12-500 | 5/9 Secondary reference IV-Electronic Klaus Vespermann Kg |
| A25A209-160-101 | 5/2 Secondary reference U.S. Government activity |
NSN 5905-00-901-3249 is a Resistor,variable,wire Wound,non, manufactured by Vishay Sprague Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-901-3249 has 3 manufacturer part numbers on file: 55-9-115-500 (Vishay Sprague Inc), 55-4-12-500 (Vishay Sprague Inc), A25A209-160-101 (Goodyear Tire and Rubber Co the).
Key specifications for 55-4-12-500: Maximum Running Torque: 5.00 INCH-OUNCES IN; Electrical Resistance Per Section: 50.0 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 150.0 SINGLE SECTION; Section Quantity: 1. 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.