The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-01-108-2497, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bi Technologies Corporation Div Bi Technologies Corp.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-108-2497 |
| Primary Part Number | 7221R50KL0-25 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Bi Technologies Corporation Div Bi Technologies Corp. |
| Status | ACTIVE |
| Maximum Running Torque | 0.50 INCH-OUNCES IN |
| Body Diameter | 0.312 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Lateral Runout | 0.003 INCHES IN |
| Electrical Resistance Per Section | 50.000 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 85.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Function Conformity Tolerance Per Section | -0.25 TO 0.25 SINGLE SECTION |
| Shaft End Play | 0.00500 INCHES IN |
| Mounting Method | STANDARD BUSHING |
| Maximum Starting Torque | 0.60 INCH-OUNCES IN |
| Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Location | LONGITUDINALLY POSITIONED ON THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.375 INCHES NOMINAL IN |
| Body Length | 1.457 INCHES NOMINAL IN |
| Shaft Runout | 0.001 INCHES IN |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 3600.0 MINIMUM |
| Pilot Diameter Runout | 0.00100 INCHES IN |
| Screw Thread Diameter | 0.250 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Shaft Radial Play | 0.003 INCHES IN |
| Actuator Travel Control Feature | STOPS |
| Resistance Tolerance Per Section in Percent | -3.0 TO 3.0 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 |
|---|---|
| 7221R50KL0-25 PRIMARY | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
| 3522 500 26535 | Thales Nederland (NLD) |
| 7221R50KL25 | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
NSN 5905-01-108-2497 is a Resistor,variable,wire Wound,pre, manufactured by Bi Technologies Corporation Div Bi Technologies Corp., classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-108-2497 has 3 manufacturer part numbers on file: 7221R50KL0-25 (Bi Technologies Corporation Div Bi Technologies Corp.), 3522 500 26535 (Thales Nederland), 7221R50KL25 (Bi Technologies Corporation Div Bi Technologies Corp.).
Key specifications for 7221R50KL0-25: Maximum Running Torque: 0.50 INCH-OUNCES IN; Body Diameter: 0.312 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Lateral Runout: 0.003 INCHES IN. 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.