Model: 254657

Nonwire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
2.500 inches
First Flat Length
0.469 inches
Flat Height
Between 0.211 inches and 0.221 inches
Body Diameter
1.156 inches
Shaft Diameter
0.250 inches
Shaft Length
Between 0.844 inches and 0.906 inches
Mounting Bushing Length
0.375 inches
Body Length
1.312 inches
Overall Diameter
1.516 inches
Shaft Style
Round, flatted
Switch Type
Rotary
Switch Voltage Rating In Volts
125.0
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
333.0
Nonturn Device Location
At 9 oclock
Nonturn Device Radius
Between 0.516 inches and 0.546 inches
Switch Operating Position
Start of rotation
Switch Contact Arrangement
Single pole, single throw, normally open, both positions maintained
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
10.000 kilohms all sections
Rotary Actuator Travel In Angular Deg
333.0
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
120.0 all sections
Power Dissipation Rating Per Section In Watts
1.6 7th secondary pattern
Power Dissipation Rating Per Section In Watts
1.8 7th secondary finish
Power Dissipation Rating Per Section In Watts
1.6 free air 2nd section
Power Dissipation Rating Per Section In Watts
1.8 free air 1st section
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
2.000 ac
Standard Taper Curve Per Section
A all sections
Terminal Type And Quantity
8 tab, solder lug
NSN
5905-00-727-1825
Part Number
254657
Description
Resistor,variable,nonwire Wound,
CAGE
1PQF4

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 254657 NSN 5905-00-727-1825

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:
--
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: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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