The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-01-042-2763, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-042-2763 |
| Primary Part Number | CM40879 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Nonturn Device Location | AT 9 OCLOCK |
| Body Diameter | 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 500.0 OHMS ALL SECTIONS |
| Section Quantity | 3 |
| Shaft Diameter | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Nonturn Device Radius | 0.531 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| First Flat Length | 0.500 INCHES NOMINAL IN |
| Mounting Method | STANDARD BUSHING |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND, FLATTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.875 INCHES NOMINAL IN |
| Body Length | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 3.0 FREE AIR ALL SECTIONS |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Bearing Type | BEARING SHAFT |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 ALL SECTIONS |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Flat Height | 0.216 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Mounting Bushing Length | 0.250 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 |
|---|---|
| CM40879 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| WW50-N-A-F056-501A-3 | State Electronics Parts Corp. (USA) |
| Reference | Meaning |
|---|---|
| CM40879 | 5/9 Secondary reference Clarostat Sensors and Controls |
NSN 5905-01-042-2763 is a Resistor,variable,wire Wound,non, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-042-2763 has 2 manufacturer part numbers on file: CM40879 (Northrop Grumman Systems Corporation), WW50-N-A-F056-501A-3 (State Electronics Parts Corp.).
Key specifications for CM40879: Nonturn Device Location: AT 9 OCLOCK; Body Diameter: 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 500.0 OHMS ALL SECTIONS. 25 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.