Model: 18M684

Nonwire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Terminal Length
0.515 inches
Body Diameter
0.500 inches
Shaft Diameter
Between 0.609 inches and 0.641 inches
Shaft Length
Between 0.609 inches and 0.641 inches
Mounting Bushing Length
Between 0.234 inches and 0.266 inches
Body Length
1.072 inches
Shaft Style
Round, slotted
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
300.0
Maximum Starting Torque
1.50 inch-ounces
Maximum Running Torque
1.50 inch-ounces
Center To Center Distance Between Terminals
Between 0.190 inches and 0.210 inches
Screw Thread Diameter
0.250 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Terminals right side and bottom
Mounting Method
Standard bushing
Electrical Resistance Per Section
2.500 gallons per minute c and better industrial clears
Electrical Resistance Per Section
5.000 percent, rated amperes c and better finish
Rotary Actuator Travel In Angular Deg
240.0
Center To Center Distance Between Center Terminal And Outside Terminal
Between 0.190 inches and 0.210 inches
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
150.0 all sections
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-150.0/+150.0 all sections
Power Dissipation Rating Per Section In Watts
0.25 7th secondary pattern
Power Dissipation Rating Per Section In Watts
0.5 7th secondary finish
Resistance Tolerance Per Section In Percent
-10.0/+10.0 all sections
Actuator Travel Control Feature
Stops
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
70.0 all sections
Standard Taper Curve Per Section
A 1st section
Standard Taper Curve Per Section
F 2nd section
Terminal Type And Quantity
3 wire loop and 3 tab, solder lug
NSN
5905-01-137-6077
Part Number
18M684
Description
Resistor,variable,nonwire Wound,
CAGE
02111

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 18M684 NSN 5905-01-137-6077

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:
A
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:
M
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:
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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