The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-557-9271, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Clarostat Sensors and Controls. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5905-00-557-9271 |
| Primary Part Number | 53-5-8-205M |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Clarostat Sensors and Controls |
| Status | ACTIVE |
| Body Diameter | 1.094 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 2.000 MEGOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 105.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.531 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| First Flat Length | 0.344 INCHES NOMINAL IN |
| Mounting Method | STANDARD BUSHING |
| Fixed Tap Quantity Per Section | 1 SINGLE SECTION |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| Shaft Style | ROUND, FLATTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.625 INCHES NOMINAL IN |
| Body Length | 0.562 INCHES NOMINAL IN |
| Tap Location Tolerance Per Section | -2.0 TO 2.0 DEG ANGULAR ROTATION SINGLE SECTION |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 300.0 NOMINAL |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Actuator Travel Control Feature | STOPS |
| Tap Location From Ccw Terminal Per Section in Deg of Effective Electrical Rotation | 156.0 SINGLE SECTION |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| Rotary Actuator Travel in Angular Deg | 300.0 NOMINAL |
| Flat Height | 0.219 INCHES NOMINAL IN |
| Mounting Bushing Length | 0.375 INCHES NOMINAL IN |
| Device Design Type | ERR-030 AT 9:00 OCLOCKUNABLE TO DECODE |
| 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 |
|---|---|
| 53-5-8-205M PRIMARY | Clarostat Sensors and Controls (USA) |
| JA2G040F205MA | Rockwell Automation, Inc. Dba Rockwell Automation (USA) |
| Reference | Meaning |
|---|---|
| KS13790L50 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5905-00-557-9271 is a Resistor,variable,nonwire Wound,, manufactured by Clarostat Sensors and Controls, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-557-9271 has 2 manufacturer part numbers on file: 53-5-8-205M (Clarostat Sensors and Controls), JA2G040F205MA (Rockwell Automation, Inc. Dba Rockwell Automation).
Key specifications for 53-5-8-205M: Body Diameter: 1.094 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 2.000 MEGOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 105.0 SINGLE SECTION. 30 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.