The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-950-7239, 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29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-950-7239 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Status | ACTIVE |
| Maximum Running Torque | 0.60 INCH-OUNCES IN |
| Body Diameter | 2.000 INCHES NOMINAL IN |
| Lateral Runout | 0.001 INCHES IN |
| Electrical Resistance Per Section | 25.0 KILOHMS SINGLE SECTION |
| Mounting Lip Depth | 0.0750 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 105.0 SINGLE SECTION |
| Undercut Width | 0.0550 INCHES NOMINAL IN |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Undercut Diameter | 1.9385 INCHES MAXIMUM IN |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Function Conformity Tolerance Per Section | -0.50 TO 0.50 SINGLE SECTION |
| Shaft End Play | 0.006 INCHES IN |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| Mounting Method | CLAMP RING(S) |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -40.0 TO 40.0 SINGLE SECTION |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 2.0000 INCHES NOMINAL IN |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.219 INCHES NOMINAL IN |
| Pilot Diameter | 1.9370 INCHES MAXIMUM IN |
| Body Length | 1.000 INCHES NOMINAL IN |
| Pilot Length | 0.0320 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 4.0 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 320.0 NOMINAL |
| Pilot Diameter Runout | 0.001 INCHES IN |
| Bearing Type | BEARING SHAFT |
| 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 |
|---|---|
| RRL16B253 | 2/2 Government specification standardization U.S. Government activity |
| MIL-R-8903 | 4/1 Identification reference U.S. Government activity |
NSN 5905-00-950-7239 is a Resistor,variable,wire Wound,pre, classified under FSC 5905, Resistor. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5905-00-950-7243, 5905-00-950-7246, 5905-00-950-9230. Verify interchangeability with system specifications before substitution.
Key specifications for 5905-00-950-7239: Maximum Running Torque: 0.60 INCH-OUNCES IN; Body Diameter: 2.000 INCHES NOMINAL IN; Lateral Runout: 0.001 INCHES IN; Electrical Resistance Per Section: 25.0 KILOHMS SINGLE SECTION. 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.