The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-758-4749, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bourns Ltd. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-758-4749 |
| Primary Part Number | 3290H1-253 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Bourns Ltd |
| Status | ACTIVE |
| Maximum Running Torque | 0.10 INCH-OUNCES IN |
| Electrical Resistance Per Section | 25.000 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 175.0 SINGLE SECTION |
| Section Quantity | 1 |
| Mounting Facility Quantity | 1 |
| Shaft Diameter | 0.060 INCHES NOMINAL IN |
| Body Style | RECTANGULAR W/MOUNTING HOLES |
| Terminal Length | 0.300 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Body Width | 0.145 INCHES NOMINAL IN |
| Body Height | 0.375 INCHES NOMINAL IN |
| Maximum Starting Torque | 5.00 INCH-OUNCES IN |
| Mounting Hole Diameter | 0.074 INCHES NOMINAL IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -50.0 TO 50.0 SINGLE SECTION |
| Terminal Location | ALL ADJACENT SIDES FROM ADJACENT CONTROL LOCATION NOT OTHERWISE SPECIFIED |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.100 INCHES NOMINAL IN |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Lateral Distance Between Mounting Hole Centers | 0.419 INCHES NOMINAL IN |
| Shaft Length | 0.040 INCHES NOMINAL IN |
| Body Length | 0.390 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 1.0 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 9000.0 NOMINAL |
| Reliability Indicator | NOT ESTABLISHED |
| Actuator Travel Control Feature | CLUTCH |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 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 |
|---|---|
| 3290H1-253 | Bourns Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 3290H1-253 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5905-00-758-4749 is a Resistor,variable,wire Wound,non, manufactured by Bourns Ltd, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-758-4749 has 1 manufacturer part number on file: 3290H1-253 (Bourns Ltd).
Key specifications for 3290H1-253: Maximum Running Torque: 0.10 INCH-OUNCES IN; Overall Height: 0.415 INCHES NOMINAL IN; Electrical Resistance Per Section: 25.000 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 175.0 SINGLE SECTION. 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.