The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-421-5879, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-421-5879 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Status | ACTIVE |
| Maximum Running Torque | 0.50 INCH-OUNCES IN |
| Nonturn Device Location | AT 6 OCLOCK |
| Body Diameter | 0.500 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 1.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 135.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.187 INCHES NOMINAL IN |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Function Conformity Tolerance Per Section | -3.00 TO 3.00 SINGLE SECTION |
| Overall Diameter | 0.500 INCHES NOMINAL IN |
| Mounting Method | STANDARD BUSHING |
| Maximum Starting Torque | 6.00 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -70.0 TO 70.0 SINGLE SECTION |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.500 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-R-39002/1 GOVERNMENT SPECIFICATION |
| Body Length | 0.650 INCHES NOMINAL IN |
| Maximum Stop Torque | 48.00 INCH-OUNCES IN |
| Power Dissipation Rating Per Section in Watts | 1.5 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 300.0 NOMINAL |
| Screw Thread Diameter | 0.250 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Actuator Travel Control Feature | STOPS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-PRF-39002/1 | 4/1 Identification reference U.S. Government activity |
| M39002/01-0042 | 2/2 Government specification standardization U.S. Government activity |
| RK09SACS102 | 5/1 Secondary reference U.S. Government activity |
| MILR39002-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-00-421-5879 is a Resistor,variable,wire Wound,pre, classified under FSC 5905, Resistor. Status: active.
Key specifications for 5905-00-421-5879: Maximum Running Torque: 0.50 INCH-OUNCES IN; Nonturn Device Location: AT 6 OCLOCK; Body Diameter: 0.500 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0. 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.