Model: 502-242

Pre Wire Wound Variable Resistor

Special Features:

Used on weapon sustems, 485l tacs and communications program combat theater tri-tac 478t

Properties:

Section Quantity
1
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
0.6250 inches
Pilot Length
0.0620 inches
Overall Length
2.011 inches
Undercut Diameter
0.625 inches
Undercut Width
0.0680 inches
Body Diameter
0.875 inches
Shaft Diameter
0.1248 inches
Shaft Length
0.438 inches
Body Length
1.573 inches
Overall Diameter
1.047 inches
Mounting Lip Diameter
0.8750 inches
Mounting Lip Depth
0.0620 inches
Shaft Style
Round
Shaft Bearing Type
Sleeve
Contact Arm Electrical Off Position
Fully ccw-cw
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
3600.0
Maximum Starting Torque
1.50 inch-ounces
Maximum Running Torque
1.50 inch-ounces
Shaft End Play
0.005 inches
Shaft Runout
0.002 inches
Lateral Runout
0.002 inches
Pilot Diameter Runout
0.002 inches
Shaft Radial Play
0.002 inches
Mechanical Backlash In Deg Angular Rotation
1.0
Terminal Location
Longitudinally positioned on the circumference
Mounting Method
Clamp ring
Electrical Resistance Per Section
10.0 kilohms single section
Rotary Actuator Travel In Angular Deg
3600.0
Function Conformity Tolerance Per Section
-0.25/+0.25 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 single section
Power Dissipation Rating Per Section In Watts
2.0 free air single section
Function Conformity Per Section
Single section independent linearity
Resistance Tolerance Per Section In Percent
-3.0/+3.0 single section
Actuator Travel Control Feature
Stops
Criticality Code Justification
Feat
Function Characteristic Per Section
Single section linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
85.0 single section
Test Data Document
13499-381-1622 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Terminal Type And Quantity
3 tab, solder lug
NSN
5905-00-243-8554
Part Number
502-242
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 502-242 NSN 5905-00-243-8554

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:
B
ESD:
B
MMAC:
EH
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
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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