Model: 55-50-178

Non Wire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical bushing mounted
Overall Length
3.063 inches
Body Diameter
0.969 inches
Shaft Diameter
0.250 inches
Shaft Length
1.500 inches
Mounting Bushing Length
0.250 inches
Body Length
1.563 inches
Overall Diameter
1.094 inches
Undercut Diameter
0.125 inches
Shaft Style
Round, stepped
Shaft Bearing Type
Bearing
Actuator Type
Dual concentric
Maximum Starting Torque
2.00 inch-ounces
Maximum Running Torque
2.00 inch-ounces
Maximum Stop Torque
128.00 inch-ounces
Nonturn Device Location
At 12 oclock
Nonturn Device Radius
0.359 inches
Fragility Factor
Rugged
Undercut Length
0.500 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
25.000 percent, rated amperes c and better finish
Electrical Resistance Per Section
5.000 percent, rated amperes c and better industrial clears
Electrical Resistance Per Section
25.000 kilohms 1st section
Electrical Resistance Per Section
5.000 kilohms 2nd section
Rotary Actuator Travel In Angular Deg
320.0
Function Conformity Tolerance Per Section
-3.00/+3.00 all sections
Function Conformity Tolerance Per Section
-3.00 to 3.00 all sections
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 all sections
Power Dissipation Rating Per Section In Watts
1.5 7th secondary pattern
Power Dissipation Rating Per Section In Watts
3.0 7th secondary finish
Power Dissipation Rating Per Section In Watts
1.5 free air 2nd section
Power Dissipation Rating Per Section In Watts
3.0 free air 1st section
Function Conformity Per Section
All sections independent linearity
Resistance Tolerance Per Section In Percent
-5.0/+5.0 all sections
Resistance Tolerance Per Section In Percent
-5.0 to 5.0 all sections
Function Characteristic Per Section
All sections linear
Tempurature Coefficient Of Resistance Wire Per Section In Ppm Per Deg Celsius
-20.0/+20.0 all sections
Tempurature Coefficient Of Resistance Wire Per Section In Ppm Per Deg Celsius
-20.0 to 20.0 all sections
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
60.0 all sections
Unpackaged Unit Weight
1.25 ounces
Terminal Type And Quantity
6 turret
NSN
5905-00-168-9316
Part Number
55-50-178
Description
Resistor,variable,wire Wound,non
CAGE
18065

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 of 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, nonwire wound, nonprecision; resistor (1), variable, nonwire wound, precision; and resistor (1), variable, wire wound, precision.

Part 55-50-178 NSN 5905-00-168-9316

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37406
FIIG:
A002A0
Concept No.:
1
App. Key:
A
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:
A
ESD:
A
MMAC:
CRITL:
X

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:
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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