Model: D37WS4-75K-20K

Nonwire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Body Diameter
1.125 inches
Shaft Diameter
0.266 inches
Shaft Length
1.250 inches
Mounting Bushing Length
0.375 inches
Body Length
1.468 inches
Undercut Diameter
0.186 inches
Shaft Style
Round, stepped
Switch Type
Rotary
Switch Voltage Rating In Volts
250.0 and 120.0
Actuator Type
Dual concentric
Effective Electrical Rotation In Deg Angular Rotation
300.0
Nonturn Device Location
At 9 oclock
Nonturn Device Radius
0.531 inches
Switch Operating Position
Start of rotation
Switch Contact Arrangement
Single pole, single throw, normally open, both positions maintained
Fragility Factor
Moderately rugged
Undercut Length
0.438 inches
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
20.0 percent, rated amperes c and better industrial clears
Electrical Resistance Per Section
75.0 percent, rated amperes c and better finish
Electrical Resistance Per Section
20.0 kilohms 2nd section
Electrical Resistance Per Section
75.0 kilohms 1st section
Rotary Actuator Travel In Angular Deg
300.0
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
85.0 all sections
Power Dissipation Rating Per Section In Watts
0.5 free air all sections
Resistance Tolerance Per Section In Percent
-20.0/+20.0 all sections
Resistance Tolerance Per Section In Percent
-20.0 to 20.0 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
1.000 ac and 3.000 dc
Standard Taper Curve Per Section
A all sections
Test Data Document
06840-733020bd 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
8 tab, solder lug
NSN
5905-00-723-3694
Part Number
D37WS4-75K-20K
Description
Resistor,variable,nonwire Wound,
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 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 D37WS4-75K-20K NSN 5905-00-723-3694

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:
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:
0.1000lbs
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:
657
TCC:
3
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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