The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-042-7772, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Maurey Instrument Corp. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5905-00-042-7772 |
| Primary Part Number | 50-M56-1B |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Maurey Instrument Corp |
| Status | ACTIVE |
| Nonturn Device Location | AT 6 OCLOCK |
| Body Diameter | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 2.5 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 135.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.187 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Overall Diameter | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Terminal Length | 0.125 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Mounting Method | LOCKING BUSHING |
| Maximum Starting Torque | 8.00 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -30.0 TO 30.0 SINGLE SECTION |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.687 INCHES MINIMUM AND 0.707 INCHES MAXIMUM IN |
| Body Length | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 1.0 FREE AIR SINGLE SECTION AND 2.0 HEAT SINK SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 320.0 MINIMUM AND 330.0 MAXIMUM |
| Screw Thread Diameter | 0.250 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 SINGLE SECTION |
| Terminal Type and Quantity | 3 SOLDER STUD |
| Rotary Actuator Travel in Angular Deg | 320.0 MINIMUM AND 330.0 MAXIMUM |
| 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 |
|---|---|
| 2123298PC11 | Bae Systems Land & Armaments L.p. (USA) |
| 50-M56-1B PRIMARY | Maurey Instrument Corp (USA) |
| Reference | Meaning |
|---|---|
| 2123298PC11 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| BUWEPSDWG62123298PC11 | C/1 Advisory reference — outside the item-of-supply concept Maurey Instrument Corp |
NSN 5905-00-042-7772 is a Resistor,variable,wire Wound,non, manufactured by Maurey Instrument Corp, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-042-7772 has 2 manufacturer part numbers on file: 2123298PC11 (Bae Systems Land & Armaments L.p.), 50-M56-1B (Maurey Instrument Corp).
Key specifications for 50-M56-1B: Nonturn Device Location: AT 6 OCLOCK; Body Diameter: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 2.5 KILOHMS SINGLE SECTION. 28 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.