The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-912-6433, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Servo Instrument Corporation. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-912-6433 |
| Primary Part Number | 977-6006 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Servo Instrument Corporation |
| Status | ACTIVE |
| Maximum Running Torque | 0.20 INCH-OUNCES IN |
| Body Diameter | 0.745 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Lateral Runout | 0.001 INCHES IN |
| Electrical Resistance Per Section | 1.0 KILOHMS 1ST SECTION AND 500.0 OHMS 2ND SECTION |
| Mounting Lip Depth | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Undercut Width | 0.0570 INCHES MINIMUM IN |
| Section Quantity | 2 |
| Shaft Diameter | 0.124 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Undercut Diameter | 0.651 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN |
| Function Characteristic Per Section | ALL SECTIONS LINEAR |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Function Conformity Tolerance Per Section | -0.35 TO 0.35 ALL SECTIONS |
| Mounting Method | CLAMP RING(S) |
| Maximum Starting Torque | 0.20 INCH-OUNCES IN |
| Fixed Tap Quantity Per Section | 2 1ST SECTION AND 2 2ND SECTION |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 ALL SECTIONS |
| Terminal Location | RADIALLY POSITIONED OVER MORE THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 0.7450 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.375 INCHES NOMINAL IN |
| Pilot Diameter | 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Body Length | 1.145 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Shaft Runout | 0.001 INCHES IN |
| Pilot Length | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Tap Location Tolerance Per Section | -1.0 TO 1.0 DEG ANGULAR ROTATION ALL SECTIONS |
| Power Dissipation Rating Per Section in Watts | 0.5 FREE AIR ALL SECTIONS |
| Effective Electrical Rotation in Deg Angular Rotation | 352.0 NOMINAL |
| Pilot Diameter Runout | 0.001 INCHES IN |
| 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 |
|---|---|
| 977-6006 | Servo Instrument Corporation (USA) |
| 950-4020 | Vishay Sprague Inc (USA) |
| Reference | Meaning |
|---|---|
| 454-016 | 3/2 Design control — primary reference U.S. Government activity |
| 977-6006 | 5/9 Secondary reference Bunker Ramo Corp Amphenol Controls Div |
NSN 5905-00-912-6433 is a Resistor,variable,wire Wound,pre, manufactured by Servo Instrument Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-912-6433 has 2 manufacturer part numbers on file: 977-6006 (Servo Instrument Corporation), 950-4020 (Vishay Sprague Inc).
Key specifications for 977-6006: Maximum Running Torque: 0.20 INCH-OUNCES IN; Body Diameter: 0.745 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN; Lateral Runout: 0.001 INCHES IN; Electrical Resistance Per Section: 1.0 KILOHMS 1ST SECTION AND 500.0 OHMS 2ND 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.