Model: R20-1-103J

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 1.9360 inches and 1.9370 inches
Pilot Length
Between 0.0290 inches and 0.0320 inches
Overall Length
Between 1.217 inches and 1.260 inches
Undercut Diameter
Between 1.9375 inches and 1.9385 inches
Undercut Width
Between 0.0700 inches and 0.0900 inches
Body Diameter
Between 1.990 inches and 2.010 inches
Shaft Diameter
0.250 inches
Shaft Length
Between 0.198 inches and 0.218 inches
Body Length
Between 0.990 inches and 1.010 inches
Overall Diameter
Between 2.099 inches and 2.151 inches
Mounting Lip Diameter
Between 1.9900 inches and 2.0100 inches
Mounting Lip Depth
Between 0.0680 inches and 0.0850 inches
Shaft Style
Round
Shaft Bearing Type
Bearing
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
Between 319.0 and 321.0
Maximum Starting Torque
0.60 inch-ounces
Shaft End Play
0.006 inches
Lateral Runout
0.001 inches
Pilot Diameter Runout
0.001 inches
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Clamp ring
Electrical Resistance Per Section
10.0 kilohms single section
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-0.50/+0.50 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
105.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-30.0/+30.0 single section
Power Dissipation Rating Per Section In Watts
4.0 free air single section
Function Conformity Per Section
Single section independent linearity
Resistance Tolerance Per Section In Percent
-1.0/+1.0 single section
Actuator Travel Control Feature
Continuous motion
Function Characteristic Per Section
Single section linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 single section
Test Data Document
81349-mil-r-8903 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
12 solder stud
Specification Data
81349-mil-r-8903 government specification
NSN
5905-00-951-4958
Part Number
R20-1-103J
Description
Resistor,variable,wire Wound,pre
CAGE
36378

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) of the output is equal to or less than plus or munus 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, nonprecision.

Part R20-1-103J NSN 5905-00-951-4958

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37408
FIIG:
A002A0
Concept No.:
1
App. Key:
D
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:
B
ESD:
B
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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:
658
TCC:
3
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8533390080
  • SITC: 77233
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Wirewound variable resistors, nesoi

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