Model: CM8739

Non Wire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
3.125 inches
First Flat Length
0.438 inches
Flat Height
0.218 inches
Body Diameter
1.625 inches
Body Diameter
1.625 inches
Shaft Diameter
0.250 inches
Shaft Length
0.875 inches
Mounting Bushing Length
0.375 inches
Body Length
2.250 inches
Overall Diameter
2.588 inches
Shaft Style
Round, flatted
Switch Type
Rotary
Switch Voltage Rating In Volts
125.0
Contact Arm Electrical Off Position
Fully cw
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
300.0
Nonturn Device Location
At 12 oclock
Nonturn Device Radius
0.500 inches
Switch Operating Position
Start of rotation
Switch Contact Arrangement
Single pole, single throw, normally open, both positions maintained
Fragility Factor
Moderately rugged
Screw Thread Diameter
0.375 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Rear-bottom
Mounting Method
Standard bushing
Features Provided
Switch
Electrical Resistance Per Section
35.000 ohms c and better
Electrical Resistance Per Section
35.000 ohms all sections
Rotary Actuator Travel In Angular Deg
300.0
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
105.0 all sections
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0/+50.0 all sections
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0 to 50.0 all sections
Power Dissipation Rating Per Section In Watts
25.0 7th secondary at 10'30 oclock
Power Dissipation Rating Per Section In Watts
25.0 free air all sections
Resistance Tolerance Per Section In Percent
-10.0/+10.0 all sections
Resistance Tolerance Per Section In Percent
-10.0 to 10.0 all sections
Actuator Travel Control Feature
Stops
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 all sections
Switch Current Type And Rating In Amps
5.000 ac/dc
Standard Taper Curve Per Section
A all sections
Terminal Type And Quantity
8 tab, solder lug
NSN
5905-00-642-1170
Part Number
CM8739
Description
Resistor,variable,wire Wound,non
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 of 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, nonwire wound, nonprecision; resistor (1), variable, nonwire wound, precision; and resistor (1), variable, wire wound, precision.

Part CM8739 NSN 5905-00-642-1170

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37406
FIIG:
A002A0
Concept No.:
1
App. Key:
A
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

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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