Model: 311-1990-00

Nonwire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Rectangular bushing mounted
Reliability Indicator
Not established
Shaft Diameter
Between 0.124 inches and 0.126 inches
Shaft Length
Between 0.594 inches and 0.656 inches
Mounting Bushing Length
Between 0.234 inches and 0.266 inches
Body Length
Between 0.947 inches and 1.041 inches
Body Width
0.625 inches
Body Height
0.625 inches
Shaft Style
Round, slotted
Shaft Bearing Type
Sleeve
Switch Type
Rotary
Switch Voltage Rating In Volts
125.0
Actuator Type
Single shaft
Maximum Starting Torque
3.00 inch-ounces
Maximum Running Torque
3.00 inch-ounces
Switch Operating Position
Start of rotation
Switch Contact Arrangement
Double pole, single throw, one open, one closed
Fragility Factor
Moderately rugged
End Application
6625-01-070-1438 plug-in unit, electronic test equipment
Screw Thread Diameter
0.250 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Lower adjacent side two rows
Mounting Method
Standard bushing
Features Provided
Switch
Electrical Resistance Per Section
2.5 kilohms single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
120.0 single section
Power Dissipation Rating Per Section In Watts
0.5 free air single section
Resistance Tolerance Per Section In Percent
-20.0/+20.0 single section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
70.0 single section
Switch Current Type And Rating In Amps
0.100 ac
Standard Taper Curve Per Section
F single section
Terminal Type And Quantity
6 tab, solder lug
NSN
5905-01-300-4914
Part Number
311-1990-00
Description
Resistor,variable,nonwire Wound,
CAGE
80009

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 311-1990-00 NSN 5905-01-300-4914

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:
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:
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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