Model: R20S42

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
3
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 1.8740 inches and 1.8750 inches
Pilot Length
Between 0.0570 inches and 0.0670 inches
Undercut Diameter
1.875 inches
Undercut Width
0.0730 inches
Body Diameter
Between 1.995 inches and 2.005 inches
Shaft Diameter
0.250 inches
Shaft Length
Between 0.969 inches and 1.031 inches
Body Length
3.079 inches
Mounting Lip Diameter
Between 1.9950 inches and 2.0050 inches
Mounting Lip Depth
Between 0.0880 inches and 0.0980 inches
Shaft Style
Round
Shaft Bearing Type
Ball
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
360.0
Maximum Starting Torque
3.00 inch-ounces
Maximum Running Torque
2.25 inch-ounces
Shaft End Play
0.005 inches
Shaft Runout
0.001 inches
Lateral Runout
0.002 inches
Pilot Diameter Runout
0.002 inches
Shaft Radial Play
0.001 inches
Fragility Factor
Moderately rugged
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Clamp ring
Features Provided
Nonmetallic shaft
Electrical Resistance Per Section
20.0 kilohms all sections
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-2.00/+2.00 all sections
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
85.0 all sections
Power Dissipation Rating Per Section In Watts
2.5 free air all sections
Function Conformity Per Section
All sections terminal base linearity
Resistance Tolerance Per Section In Percent
-10.0/+10.0 all sections
Actuator Travel Control Feature
Continuous motion
Function Characteristic Per Section
All sections graph
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
25.0 all sections
Test Data Document
10001-2091272 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
15 turret
NSN
5905-00-399-7762
Part Number
R20S42
Description
Resistor,variable,wire Wound,pre
CAGE
11317

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 R20S42 NSN 5905-00-399-7762

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
Z
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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