Model: 389X-503

Nonwire Wound Variable Resistor

Special Features:

Weapons system essential

Properties:

Section Quantity
1
Body Style
Rectangular bushing mounted
Reliability Indicator
Not established
Overall Length
1.850 inches
Terminal Length
0.250 inches
Shaft Diameter
0.125 inches
Shaft Length
1.350 inches
Mounting Bushing Length
0.250 inches
Body Length
0.500 inches
Body Width
0.500 inches
Body Height
0.500 inches
Shaft Style
Round
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
250.0
Maximum Starting Torque
4.50 inch-ounces
Maximum Running Torque
4.50 inch-ounces
Maximum Stop Torque
48.00 inch-ounces
Nonturn Device Location
At 3 oclock
Nonturn Device Radius
0.250 inches
Center To Center Distance Between Terminals
0.200 inches
End Application
Ticonderoga class c (47), spruance class dd(963) , arleigh burke class ddg, oliver perry class ffg, emory s.Land class as, forrestal class cv, wasp class lhd, nimitz class cvn, austin ship class lpd-4 amphibious transport docks, tarawa class lha
Screw Thread Diameter
0.250 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Lower adjacent side single row
Mounting Method
Standard bushing
Cubic Measure
0.125 cubic inches
Electrical Resistance Per Section
50.000 percent, rated amperes c and better flooring
Rotary Actuator Travel In Angular Deg
295.0
Center To Center Distance Between Center Terminal And Outside Terminal
0.100 inches
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
150.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-100.0/+100.0 single section
Power Dissipation Rating Per Section In Watts
1.0 7th secondary quality
Resistance Tolerance Per Section In Percent
-10.0/+10.0 single section
Actuator Travel Control Feature
Stops
Criticality Code Justification
Feat
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
85.0 single section
Standard Taper Curve Per Section
A single section
Terminal Type And Quantity
3 pin
NSN
5905-01-221-2304
Part Number
389X-503
Description
Resistor,variable,nonwire Wound,
CAGE
12697

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 or 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, wire wound, nonprecision; resistor (1), variable, nonwire wound precision; and resistor (1), variable, wire wound, precision.

Part 389X-503 NSN 5905-01-221-2304

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37405
FIIG:
A002A0
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
B
ESD:
B
MMAC:
EH
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
--
WCC:
72D
TCC:
3
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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