Model: 938-188-0001

Nonwire Wound Variable Resistor

Properties:

Section Quantity
3
Shaft Bearing Type
Bearing
Switch Type
Rotary
Actuator Type
Dual concentric
Effective Electrical Rotation In Deg Angular Rotation
320.0
Maximum Starting Torque
6.00 inch-ounces
Nonturn Device Radius
0.437 inches
Shaft End Play
0.00300 inches
Shaft Radial Play
0.001 inches
Switch Contact Arrangement
Single pole, single throw, normally open, both positions maintained
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Standard bushing
Electrical Resistance Per Section
10.000 kilohms 3rd section and 5.000 kilohms 2nd section and 1.000 kilohms 1st section
Function Conformity Tolerance Per Section
-3.00/+3.00 all sections
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-250.0/+250.0 single section
Power Dissipation Rating Per Section In Watts
1.5 free air single section
Function Conformity Per Section
All sections independent linearity
Resistance Tolerance Per Section In Percent
-5.0/+5.0 3rd section and -5.0/+5.0 2nd section and -1.0/+1.0 1st section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 single section
NSN
5905-00-138-4239
Part Number
938-188-0001
Description
Resistor,variable,nonwire Wound,
CAGE
95542

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 938-188-0001 NSN 5905-00-138-4239

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:
A
ESD:
A
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
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: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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