Model: KKS4U2521S28

Nonwire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
2.406 inches
Body Diameter
1.000 inches
Shaft Diameter
0.250 inches
Shaft Length
0.875 inches
Mounting Bushing Length
0.375 inches
Body Length
1.125 inches
Overall Diameter
1.375 inches
Shaft Style
Round, slotted
Switch Type
Rotary
Switch Voltage Rating In Volts
250.0 and 125.0
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
292.0
Switch Operating Position
Start of rotation
Switch Contact Arrangement
Double pole, single throw, normally open
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
2.5 kilohms all sections
Rotary Actuator Travel In Angular Deg
333.0
Resistance Tempurature Characteristic Range Per Section In Percent
+0.0/+5.5 -55 degrees celsius all sections and +0.0/+3.0 -25 degrees celsius all sections and +0.0/+1.5 0 degrees celsius all sections and -2.0/+2.0 85 degrees celsius all sections and +0.0/+4.5 120 degrees celsius all sections
Resistance Tempurature Characteristic Range Per Section In Percent
+0.0 to 5.5 -55 degrees celsius all sections and +0.0 to 3.0 -25 degrees celsius all sections and +0.0 to 1.5 0 degrees celsius all sections and -2.0 to 2.0 85 degrees celsius all sections and +0.0 to 4.5 120 degrees celsius all sections
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
120.0 all sections
Power Dissipation Rating Per Section In Watts
2.83 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
70.0 all sections
Switch Current Type And Rating In Amps
1.000 ac and 3.000 dc
Standard Taper Curve Per Section
A all sections
Terminal Type And Quantity
10 tab, solder lug
NSN
5905-00-627-0303
Part Number
KKS4U2521S28
Description
Resistor,variable,nonwire Wound,
CAGE

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 KKS4U2521S28 NSN 5905-00-627-0303

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:
ESD:
MMAC:
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:
72D
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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