Model: 1803993-8

Nonwire Wound Variable Resistor

Special Features:

One terminal not electrically connected

Properties:

Section Quantity
2
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 1.3120 inches and 1.3125 inches
Pilot Length
Between 0.0570 inches and 0.0670 inches
Undercut Diameter
Between 1.280 inches and 1.290 inches
Undercut Width
Between 0.0680 inches and 0.0780 inches
Body Diameter
1.432 mils and 1.442 centimeters
Shaft Diameter
Between 0.2494 inches and 0.2497 inches
Shaft Length
Between 0.600 inches and 0.640 inches
Body Length
1.510 inches
Mounting Lip Diameter
Between 1.4320 inches and 1.4420 inches
Mounting Lip Depth
0.0880 mils and 0.0980 centimeters
Shaft Style
Round
Shaft Bearing Type
Sleeve
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
340.0
Maximum Starting Torque
0.60 inch-ounces
Maximum Running Torque
0.40 inch-ounces
Shaft Runout
0.001 inches
Lateral Runout
0.001 inches
Pilot Diameter Runout
0.001 inches
Shaft Radial Play
0.001 inches
Mechanical Backlash In Deg Angular Rotation
0.25
Fragility Factor
Moderately rugged
Terminal Location
Radially positioned over more than half the circumference
Mounting Method
Clamp ring
Features Provided
Humidity proof
Cubic Measure
1.573 cubic inches
Electrical Resistance Per Section
5.0 percent, rated amperes c and better
Tap Location From Ccw Terminal Per Section In Deg Of Effective Electrical Rotation
170.0 all sections
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-0.50/+0.50 all sections
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 all sections
Power Dissipation Rating Per Section In Watts
1.0 7th secondary at 10'30 oclock
Function Conformity Per Section
All sections independent linearity
Fixed Tap Quantity Per Section
2 all sections
Tap Location Tolerance Per Section
-1.0/+1.0 ohms all sections
Resistance Tolerance Per Section In Percent
-10.0/+10.0 all sections
Actuator Travel Control Feature
Continuous motion
Tap Location From Ccw Terminal Per Section In Ohms
2500.0 all sections
Function Characteristic Per Section
6 oclock 7th primary
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
75.0 all sections
Test Data Document
03956-1803993 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Terminal Type And Quantity
10 turret
NSN
5905-01-064-3764
Part Number
1803993-8
Description
Resistor,variable,nonwire Wound,
CAGE
03956

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 finctional tolerance (linearity) of the output is equal to or less 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 postioned taps designed to be set and fixed prior to use, see resistor, adjustable. For items with step by step variation, see rehostat 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, nonprecision; and resistor (1), variable, wire wound, precision.

Part 1803993-8 NSN 5905-01-064-3764

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37407
FIIG:
A002A0
Concept No.:
1
App. Key:
C
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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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