The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-01-081-8907, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Vishay Intertechnology, Inc.. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5905-01-081-8907 |
| Primary Part Number | 1240W-502 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Vishay Intertechnology, Inc. |
| Status | ACTIVE |
| Maximum Running Torque | 0.20 INCH-OUNCES IN |
| Electrical Resistance Per Section | 5.000 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.070 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Body Width | 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Body Height | 0.250 INCHES NOMINAL IN |
| Maximum Starting Torque | 0.20 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.025 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Body Length | 0.250 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.250 FREE AIR SINGLE SECTION |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 WIRE LEAD |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 85.0 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 |
|---|---|
| 1240W-502 PRIMARY | Vishay Intertechnology, Inc. (USA) |
| 583R522H10 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 583R522H10 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-01-081-8907 is a Resistor,variable,wire Wound,pre, manufactured by Vishay Intertechnology, Inc., classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-081-8907 has 2 manufacturer part numbers on file: 1240W-502 (Vishay Intertechnology, Inc.), 583R522H10 (Northrop Grumman Support Services Corp).
Key specifications for 1240W-502: Maximum Running Torque: 0.20 INCH-OUNCES IN; Electrical Resistance Per Section: 5.000 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION; Section Quantity: 1. 19 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.