The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-250-7987, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-250-7987 |
| Primary Part Number | 68A32C316-3 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Maximum Running Torque | 2.00 INCH-OUNCES IN |
| Body Diameter | 1.750 INCHES NOMINAL IN |
| Lateral Runout | 0.005 INCHES IN |
| Electrical Resistance Per Section | 20.0 KILOHMS ALL SECTIONS |
| Mounting Lip Depth | 0.0930 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 ALL SECTIONS |
| Undercut Width | 0.0730 INCHES MINIMUM IN |
| Section Quantity | 2 |
| Shaft Diameter | 0.2497 INCHES MAXIMUM IN |
| Undercut Diameter | 1.562 INCHES MAXIMUM IN |
| Function Characteristic Per Section | ALL SECTIONS LINEAR |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Function Conformity Tolerance Per Section | -0.25 TO 0.25 ALL SECTIONS |
| Mounting Method | CLAMP RING(S) |
| Maximum Starting Torque | 3.00 INCH-OUNCES IN |
| Fixed Tap Quantity Per Section | 9 1ST SECTION AND 13 2ND SECTION |
| Terminal Location | RADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 1.7500 INCHES NOMINAL IN |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.625 INCHES NOMINAL IN |
| Pilot Diameter | 1.5620 INCHES MAXIMUM IN |
| Body Length | 0.990 INCHES NOMINAL IN |
| Shaft Runout | 0.001 INCHES IN |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Tap Location Tolerance Per Section | -0.5 TO 0.5 DEG ANGULAR ROTATION ALL SECTIONS |
| Power Dissipation Rating Per Section in Watts | 8.0 FREE AIR ALL SECTIONS |
| Effective Electrical Rotation in Deg Angular Rotation | 350.0 NOMINAL |
| Pilot Diameter Runout | 0.0015 INCHES IN |
| Bearing Type | BALL SHAFT |
| 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 |
|---|---|
| 68A32C316-3 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5905-00-250-7987 is a Resistor,variable,wire Wound,pre, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-250-7987 has 1 manufacturer part number on file: 68A32C316-3 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 68A32C316-3: Maximum Running Torque: 2.00 INCH-OUNCES IN; Body Diameter: 1.750 INCHES NOMINAL IN; Lateral Runout: 0.005 INCHES IN; Electrical Resistance Per Section: 20.0 KILOHMS ALL SECTIONS. 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.