The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-007-7285, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Wyvern Technologies Div Wyvern Technologies, Inc.. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-007-7285 |
| Primary Part Number | WYVCM38976 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Wyvern Technologies Div Wyvern Technologies, Inc. |
| Status | ACTIVE |
| Nonturn Device Location | AT 9 OCLOCK |
| Body Diameter | 1.125 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 500.000 OHMS ALL SECTIONS |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 135.0 ALL SECTIONS |
| Section Quantity | 3 |
| Shaft Diameter | 0.250 INCHES MAXIMUM IN |
| Nonturn Device Radius | 0.531 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY DELICATE |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Overall Diameter | 1.532 INCHES NOMINAL IN |
| Mounting Method | STANDARD BUSHING |
| Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 ALL SECTIONS |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Features Provided | NONMETALLIC SHAFT |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 2.375 INCHES NOMINAL IN |
| Body Length | 1.782 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 4.0 FREE AIR ALL SECTIONS |
| Effective Electrical Rotation in Deg Angular Rotation | 280.0 NOMINAL |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Actuator Travel Control Feature | STOPS |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 ALL SECTIONS |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Rotary Actuator Travel in Angular Deg | 300.0 NOMINAL |
| Mounting Bushing Length | 0.375 INCHES NOMINAL 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 |
|---|---|
| WYVCM38976 PRIMARY | Wyvern Technologies Div Wyvern Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| CM38976 | 5/9 Secondary reference Clarostat Sensors and Controls |
| 45M500-500-500 | 5/9 Secondary reference Clarostat Sensors and Controls |
NSN 5905-00-007-7285 is a Resistor,variable,wire Wound,non, manufactured by Wyvern Technologies Div Wyvern Technologies, Inc., classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-007-7285 has 1 manufacturer part number on file: WYVCM38976 (Wyvern Technologies Div Wyvern Technologies, Inc.).
Key specifications for WYVCM38976: Nonturn Device Location: AT 9 OCLOCK; Body Diameter: 1.125 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 500.000 OHMS ALL SECTIONS. 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.