Model: 28A4-2184

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
4
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Body Diameter
2.125 inches
Shaft Diameter
0.375 inches
Shaft Length
1.562 inches
Mounting Bushing Length
0.375 inches
Body Length
4.500 inches
Shaft Style
Round
Shaft Bearing Type
Sleeve
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
320.0
Maximum Starting Torque
2.50 inch-ounces
Screw Thread Diameter
0.375 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Radially positioned over more than half the circumference
Mounting Method
Standard bushing
Electrical Resistance Per Section
30.7 kilohms all sections
Rotary Actuator Travel In Angular Deg
330.0
Function Conformity Tolerance Per Section
-1.00/+1.00 all sections
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
100.0 all sections
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-20.0/+20.0 all sections
Power Dissipation Rating Per Section In Watts
5.9 free air all sections and 8.4 heat sink all sections
Function Conformity Per Section
All sections independent linearity
Resistance Tolerance Per Section In Percent
-5.0/+5.0 all sections
Actuator Travel Control Feature
Stops
Function Characteristic Per Section
All sections linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 all sections
Terminal Type And Quantity
12 turret
NSN
5905-00-215-2788
Part Number
28A4-2184
Description
Resistor,variable,wire Wound,pre
CAGE
19176

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 28A4-2184 NSN 5905-00-215-2788

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:
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:
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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