Part Details | NONPRECISION WIRE WOUND VARIABLE RESISTOR
5905-00-721-1638 A resistor in which a sliding or rolling contact moves over an exposed area of the resistive element to change the ohmic value of the output. The functional tolerance (linearity), if given, of the output is greater than plus of minus 1 percent on linear outputs. Specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. For items having manually positioned taps designed to be set and fixed prior to use, see RESISTOR, ADJUSTABLE. For items with step by step variation, see RHEOSTAT and RESISTOR, STEP BY STEP. For tandem-mounted items designed to function together as an attenuator (and rated accordingly), see ATTENUATOR, VARIABLE. Excludes RESISTOR (1), VARIABLE, NONWIRE WOUND, NONPRECISION; RESISTOR (1), VARIABLE, NONWIRE WOUND, PRECISION; and RESISTOR (1), VARIABLE, WIRE WOUND, PRECISION.
Alternate Parts: E250R1T2, 9173278, 5905-00-721-1638, 00-721-1638, 5905007211638, 007211638
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-721-1638 | 37406 ( RESISTOR, VARIABLE, WIRE WOUND, NONPRECISION ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL BUSHING MOUNTED
ROUND
Cross Reference | NSN 5905-00-721-1638
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| E250R1T2 | 44655 | HEICO OHMITE, L.L.C.DBA OHMITE MANUFACTURING |
| 9173278 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 5905-00-721-1638
| Characteristic | Specifications |
|---|---|
| SECTION QUANTITY | 2 |
| MAXIMUM STARTING TORQUE | 3.20 INCH-OUNCES |
| POWER DISSIPATION RATING PER SECTION IN WATTS | 12.5 FREE AIR SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER | 25.0 SINGLE SECTION |
| AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER | 340.0 SINGLE SECTION |
| BODY STYLE | CYLINDRICAL BUSHING MOUNTED |
| BODY DIAMETER | 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
| BODY LENGTH | 1.875 INCHES MAXIMUM |
| MOUNTING BUSHING LENGTH | 0.250 INCHES NOMINAL |
| ACTUATOR TYPE | SINGLE SHAFT |
| SHAFT STYLE | ROUND |
| SHAFT DIAMETER | 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
| SHAFT LENGTH | 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| ROTARY ACTUATOR TRAVEL IN ANGULAR DEG | 300.0 NOMINAL |
| ACTUATOR TRAVEL CONTROL FEATURE | STOPS |
| NONTURN DEVICE LOCATION | AT 3 OCLOCK |
| NONTURN DEVICE RADIUS | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| MOUNTING METHOD | STANDARD BUSHING |
| SCREW THREAD SERIES DESIGNATOR | UNEF |
| SCREW THREAD DIAMETER | 0.375 INCHES NOMINAL |
| SCREW THREAD QUANTITY PER INCH | 32.0 |
| TERMINAL TYPE AND QUANTITY | 6 TAB, SOLDER LUG |
| TERMINAL LOCATION | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| RELIABILITY INDICATOR | NOT ESTABLISHED |
| OVERALL LENGTH | 2.500 INCHES NOMINAL |
| OVERALL DIAMETER | 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM |