Model: 18W4-2154

Non Wire Wound Variable Resistor

Properties:

Section Quantity
3
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Body Diameter
1.105 mils and 1.125 centimeters
Shaft Diameter
Between 0.1245 inches and 0.1248 inches
Shaft Length
Between 0.865 inches and 0.885 inches
Mounting Bushing Length
Between 0.365 inches and 0.385 inches
Body Length
Between 1.980 inches and 2.000 inches
Shaft Style
Round
Shaft Bearing Type
Bearing
Switch Type
Rotary
Switch Voltage Rating In Volts
5.0 and 28.0
Actuator Type
Single shaft
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
Radially positioned over less than half the circumference
Mounting Method
Standard bushing
Features Provided
Switch
Electrical Resistance Per Section
4.0 percent, rated amperes c and better
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
105.0 all sections
Power Dissipation Rating Per Section In Watts
2.0 7th secondary at 10'30 oclock
Resistance Tolerance Per Section In Percent
-3.0/+3.0 all sections
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 all sections
Switch Current Type And Rating In Amps
0.150 ac/dc
Standard Taper Curve Per Section
A all sections
Terminal Type And Quantity
13 turret
NSN
5905-00-900-2040
Part Number
18W4-2154
Description
Resistor,variable,wire Wound,non
CAGE
19176

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 18W4-2154 NSN 5905-00-900-2040

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:
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:
--
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:
72D
TCC:
3
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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