Model: 138-121-0001

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 0.9683 inches and 0.9688 inches
Pilot Length
Between 0.0570 inches and 0.0670 inches
Overall Length
2.135 inches
First Flat Length
Between 0.234 inches and 0.266 inches
Flat Height
Between 0.067 inches and 0.109 inches
Undercut Diameter
Between 0.9683 inches and 0.9688 inches
Undercut Width
Between 0.0570 inches and 0.0670 inches
Body Diameter
Between 1.057 inches and 1.067 inches
Shaft Diameter
0.125 inches
Shaft Length
Between 0.984 inches and 1.016 inches
Body Length
1.135 inches
Overall Diameter
1.203 inches
Mounting Lip Diameter
Between 0.9683 inches and 0.9688 inches
Mounting Lip Depth
Between 0.0570 inches and 0.0670 inches
Shaft Style
Round, flatted
Contact Arm Electrical Off Position
Fully ccw
Actuator Type
Dual concentric
Effective Electrical Rotation In Deg Angular Rotation
Between 345.0 and 355.0
Maximum Starting Torque
0.40 inch-ounces
Shaft Runout
0.001 inches
Shaft Radial Play
0.002 inches
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Clamp ring
Electrical Resistance Per Section
2.0 kilohms all sections
Rotary Actuator Travel In Angular Deg
345.0
Function Conformity Tolerance Per Section
-0.50/+0.50 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
150.0 single section
Power Dissipation Rating Per Section In Watts
5.0 free air all sections
Function Conformity Per Section
Single section independent linearity
Resistance Tolerance Per Section In Percent
-1.0/+1.0 all sections
Actuator Travel Control Feature
Stops
Function Characteristic Per Section
Single section linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
85.0 single section
Terminal Type And Quantity
6 solder stud
NSN
5905-00-940-7168
Part Number
138-121-0001
Description
Resistor,variable,wire Wound,pre
CAGE
95542

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 138-121-0001 NSN 5905-00-940-7168

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

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:
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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