The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-780-9428, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bi Technologies Corporation Div Bi Technologies Corp.. Government technical data includes 24 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-780-9428 |
| Primary Part Number | 55L500K |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Bi Technologies Corporation Div Bi Technologies Corp. |
| Status | ACTIVE |
| Electrical Resistance Per Section | 500.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 200.0 SINGLE SECTION |
| Section Quantity | 1 |
| Mounting Facility Quantity | 2 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Body Style | RECTANGULAR W/MOUNTING HOLES/SLOTS |
| Mounting Method | UNTHREADED HOLE(S) |
| Body Width | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| Body Height | 0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN |
| Mounting Hole Diameter | 0.087 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -250.0 TO 250.0 SINGLE SECTION |
| Terminal Location | REAR END |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Lateral Distance Between Mounting Hole Centers | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN |
| Shaft Length | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Body Length | 1.218 INCHES MINIMUM AND 1.282 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 1.0 FREE AIR SINGLE SECTION |
| Reliability Indicator | NOT ESTABLISHED |
| Actuator Travel Control Feature | CLUTCH |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 WIRE LEAD |
| Rotary Actuator Travel in Angular Deg | 9000.0 NOMINAL |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 125.0 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 |
|---|---|
| 180WL500K | Cts Corp Electromechanical Div (USA) |
| 55L500K PRIMARY | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
| Reference | Meaning |
|---|---|
| 6800-3093-13 | 5/9 Secondary reference Recon/optical, Inc. |
| 2448740PC8 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 6800-3093-13 | 5/9 Secondary reference U.S. Government activity |
| 180WL500K | 5/9 Secondary reference Cts Corp |
NSN 5905-00-780-9428 is a Resistor,variable,nonwire Wound,, manufactured by Bi Technologies Corporation Div Bi Technologies Corp., classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-780-9428 has 2 manufacturer part numbers on file: 180WL500K (Cts Corp Electromechanical Div), 55L500K (Bi Technologies Corporation Div Bi Technologies Corp.).
Key specifications for 55L500K: Overall Height: 0.305 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN; Electrical Resistance Per Section: 500.0 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 200.0 SINGLE SECTION; Section Quantity: 1. 24 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.