The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-085-8334, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Drs Sustainment Systems Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-085-8334 |
| Primary Part Number | ES3877-B502B |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — No Item Name Available |
| Manufacturer | Drs Sustainment Systems Inc |
| Status | ACTIVE |
| Terminal Type and Quantity | 4 TURRET |
| Cubic Measure | 0.338 CUBIC INCHES |
| Resistance Temp Characteristic Range Per Section in Percent | -5.0 TO 5.0 -65 DEG CELSIUS SINGLE SECTION AND -2.5 TO 2.5 0 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 75 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 125 DEG CELSIUS SINGLE SECTION |
| Undercut Width | 0.0570 INCHES MINIMUM IN |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Undercut Diameter | 0.760 INCHES MAXIMUM IN |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 150.0 SINGLE SECTION |
| Rotary Actuator Travel in Angular Deg | 360.0 NOMINAL |
| Shaft End Play | 0.00500 INCHES IN |
| Pilot Diameter Runout | 0.00100 INCHES IN |
| Maximum Starting Torque | 0.50 INCH-OUNCES IN |
| Shaft Radial Play | 0.005 INCHES IN |
| Effective Electrical Rotation in Deg Angular Rotation | 340.0 MINIMUM |
| Lateral Runout | 0.002 INCHES IN |
| Fragility Factor | MODERATELY RUGGED |
| Shaft Runout | 0.001 INCHES IN |
| Maximum Running Torque | 0.50 INCH-OUNCES IN |
| Actuator Type | SINGLE SHAFT |
| Features Provided | HUMIDITY PROOF |
| Fixed Tap Quantity Per Section | 1 SINGLE SECTION |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Tap Location Tolerance Per Section | -0.5 TO 0.5 DEG ANGULAR ROTATION SINGLE SECTION |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Mounting Method | CLAMP RING(S) |
| Mounting Lip Diameter | 0.8750 INCHES NOMINAL IN |
| Actuator Travel Control Feature | CONTINUOUS MOTION |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 85.0 SINGLE SECTION |
| Reliability Indicator | NOT ESTABLISHED |
| Tap Location From Ccw Terminal Per Section in Deg of Effective Electrical Rotation | 170.0 SINGLE SECTION |
| Function Conformity Tolerance Per Section | -0.50 TO 0.50 SINGLE SECTION |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ES3877-B502B | Drs Sustainment Systems Inc (USA) |
| ES3877-B502B | Drs Sustainment Systems, Inc. (USA) |
| 159-0001 | Vishay Sprague Inc (USA) |
| 159-1 | Vishay Sprague Inc (USA) |
NSN 5905-01-085-8334 is a Resistor,variable,nonwire Wound,, manufactured by Drs Sustainment Systems Inc, classified under FSC 5905 (No Item Name Available). Status: active.
NSN 5905-01-085-8334 has 4 cross-referenced part numbers: ES3877-B502B (Drs Sustainment Systems Inc), ES3877-B502B (Drs Sustainment Systems, Inc.), 159-0001 (Vishay Sprague Inc), 159-1 (Vishay Sprague Inc).
There are 12 known substitutes for 5905-01-085-8334: 6240-00-014-5431, 2990-00-185-7028, 4820-00-202-9528 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for ES3877-B502B: Terminal Type and Quantity: 4 TURRET; Cubic Measure: 0.338 CUBIC INCHES; Resistance Temp Characteristic Range Per Section in Percent: -5.0 TO 5.0 -65 DEG CELSIUS SINGLE SECTION AND -2.5 TO 2.5 0 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 75 DEG CELSIUS SINGLE SECTION AND -5.0 TO 5.0 125 DEG CELSIUS SINGLE SECTION; Undercut Width: 0.0570 INCHES MINIMUM IN. 30 total characteristics are documented in the Federal Logistics Information System.