The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-944-3874, 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 Vishay Sprague Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-944-3874 |
| Primary Part Number | 520-9 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — No Item Name Available |
| Manufacturer | Vishay Sprague Inc |
| Status | ACTIVE |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Mounting Bushing Length | 0.250 INCHES NOMINAL IN |
| Maximum Starting Torque | 0.50 INCH-OUNCES IN |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Resistance Tolerance Per Section in Percent | -3.0 TO 3.0 SINGLE SECTION |
| Function Conformity Tolerance Per Section | -0.25 TO 0.25 SINGLE SECTION |
| Maximum Running Torque | 0.40 INCH-OUNCES IN |
| Mounting Method | STANDARD BUSHING |
| Screw Thread Series Designator | UNEF |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Fixed Tap Quantity Per Section | 1 SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 1800.0 NOMINAL |
| Screw Thread Quantity Per Inch | 32.0 |
| Overall Diameter | 0.880 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 40.0 SINGLE SECTION |
| Electrical Resistance Per Section | 10.000 KILOHMS SINGLE SECTION |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Function Conformity Per Section | SINGLE SECTION INDEPENDENT LINEARITY |
| Shaft Length | 0.500 INCHES NOMINAL IN |
| Tap Location Tolerance Per Section | -2.0 TO 2.0 OHMS SINGLE SECTION |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 4 SOLDER STUD |
| Section Quantity | 1 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5905-00-944-3874 is a Resistor,variable,wire Wound,pre, manufactured by Vishay Sprague Inc, classified under FSC 5905 (No Item Name Available). Status: active.
NSN 5905-00-944-3874 has 2 cross-referenced part numbers: 520-9 (IV-Electronic Klaus Vespermann Kg), 520-9 (Vishay Sprague Inc).
There are 10 known substitutes for 5905-00-944-3874: 3040-00-012-7330, 3110-00-156-4719, 3110-00-156-4879 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 520-9: Power Dissipation Rating Per Section in Watts: 2.0 FREE AIR SINGLE SECTION; Mounting Bushing Length: 0.250 INCHES NOMINAL IN; Maximum Starting Torque: 0.50 INCH-OUNCES IN; Screw Thread Diameter: 0.375 INCHES NOMINAL IN. 25 total characteristics are documented in the Federal Logistics Information System.