Model: 300-920

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
3
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
2.080 inches
Terminal Length
0.188 inches
Body Diameter
Between 1.995 inches and 2.005 inches
Shaft Diameter
0.250 inches
Shaft Length
0.875 inches
Mounting Bushing Length
0.375 inches
Body Length
1.205 inches
Overall Diameter
2.188 inches
Shaft Style
Round
Shaft Bearing Type
Sleeve
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
356.0
Maximum Starting Torque
2.90 inch-ounces
Maximum Running Torque
1.80 inch-ounces
Shaft End Play
0.00500 inches
Shaft Runout
0.002 inches
Lateral Runout
0.005 inches
Pilot Diameter Runout
0.00200 inches
Shaft Radial Play
0.004 inches
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
Electrical Resistance Per Section
5.000 kilohms 1st section
Electrical Resistance Per Section
5.000 percent, rated amperes c and better industrial clears
Electrical Resistance Per Section
500.000 ohms 3rd section
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-0.30 to 0.30 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
105.0 single section
Power Dissipation Rating Per Section In Watts
5.0 free air single section
Function Conformity Per Section
Single section independent linearity
Resistance Tolerance Per Section In Percent
-3.0/+3.0 1st section
Resistance Tolerance Per Section In Percent
-3.0/+3.0 3rd section
Resistance Tolerance Per Section In Percent
-3.0 to 3.0 2nd section
Actuator Travel Control Feature
Continuous motion
Function Characteristic Per Section
Single section linear
Tempurature Coefficient Of Resistance Wire Per Section In Ppm Per Deg Celsius
-20.0/+20.0 single section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 single section
Terminal Type And Quantity
9 solder stud
NSN
5905-00-051-4208
Part Number
300-920
Description
Resistor,variable,wire Wound,pre
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) of the output is equal to or less than plus or munus 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, nonprecision.

Part 300-920 NSN 5905-00-051-4208

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37408
FIIG:
A002A0
Concept No.:
1
App. Key:
D
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
77.5
WCC:
658
TCC:
Z
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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