Model: 311-0520-00

Nonwire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
2.937 inches
Body Diameter
0.812 inches
Shaft Diameter
0.250 inches
Shaft Length
1.000 inches
Mounting Bushing Length
0.375 inches
Body Length
1.812 inches
Overall Diameter
1.062 inches
Shaft Style
Round
Switch Type
Rotary
Switch Voltage Rating In Volts
120.0
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
300.0
Maximum Starting Torque
6.00 inch-ounces
Maximum Running Torque
0.80 inch-ounces
Maximum Stop Torque
64.00 inch-ounces
Nonturn Device Location
At 3 oclock
Nonturn Device Radius
0.469 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
400.0 percent, rated amperes c and better industrial clears
Electrical Resistance Per Section
75.0 percent, rated amperes c and better finish
Rotary Actuator Travel In Angular Deg
300.0
Resistance Tempurature Characteristic Range Per Section In Percent
+0.0/+7.0 -55 degrees celsius 1st section and +0.5/+3.5 -25 degrees celsius 1st section and +0.0/+2.0 0 degrees celsius 1st section and -2.5/+2.5 85 degrees celsius 1st section and +0.0/+5.0 120 degrees celsius 1st section
Resistance Tempurature Characteristic Range Per Section In Percent
+0.0/+8.0 -55 degrees celsius 2nd section and +0.0/+4.0 -25 degrees celsius 2nd section and +0.0/+2.0 0 degrees celsius 2nd section and -3.0/+3.0 85 degrees celsius 2nd section and +0.0/+6.0 120 degrees celsius 2nd section
Function Conformity Tolerance Per Section
-0.15/+0.15 2nd section
Function Conformity Tolerance Per Section
-0.25/+0.25 1st section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
105.0 all sections
Power Dissipation Rating Per Section In Watts
0.5 free air all sections
Function Conformity Per Section
All sections independent linearity
Fixed Tap Quantity Per Section
1 2nd section
Fixed Tap Quantity Per Section
2 1st section
Tap Location Tolerance Per Section
-1.0/+1.0 ohms all sections
Resistance Tolerance Per Section In Percent
-10.0/+10.0 1st section
Resistance Tolerance Per Section In Percent
-20.0/+20.0 2nd section
Actuator Travel Control Feature
Stops
Tap Location From Ccw Terminal Per Section In Ohms
200000.0 2nd section
Tap Location From Ccw Terminal Per Section In Ohms
30000.0 1st section and 50500.0 1st section
Function Characteristic Per Section
All sections linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 all sections
Switch Current Type And Rating In Amps
2.500 ac
Terminal Type And Quantity
11 tab, solder lug
NSN
5905-01-050-8176
Part Number
311-0520-00
Description
Resistor,variable,nonwire Wound,
CAGE
12697

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 finctional tolerance (linearity) of the output is equal to or less 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 postioned taps designed to be set and fixed prior to use, see resistor, adjustable. For items with step by step variation, see rehostat 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, nonprecision; and resistor (1), variable, wire wound, precision.

Part 311-0520-00 NSN 5905-01-050-8176

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37407
FIIG:
A002A0
Concept No.:
1
App. Key:
C
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:
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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