Model: 28M911

Nonwire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Rectangular bushing mounted
Reliability Indicator
Not established
First Flat Length
0.625 inches
Flat Height
Between 0.208 inches and 0.228 inches
Shaft Diameter
Between 0.240 inches and 0.260 inches
Shaft Length
Between 0.870 inches and 0.930 inches
Mounting Bushing Length
0.250 inches
Body Length
0.625 inches
Body Width
0.875 inches
Body Height
0.875 inches
Shaft Style
Round, flatted
Shaft Bearing Type
Sleeve
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
Between 290.0 and 300.0
Maximum Stop Torque
64.00 inch-ounces
Nonturn Device Location
At 9 oclock
Nonturn Device Radius
Between 0.521 inches and 0.541 inches
Fragility Factor
Moderately rugged
Screw Thread Diameter
Between 0.365 inches and 0.385 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Lower adjacent side two rows
Mounting Method
Standard bushing
Features Provided
Humidity proof
Cubic Measure
0.478 cubic inches
Electrical Resistance Per Section
5.0 kilohms single section
Rotary Actuator Travel In Angular Deg
Between 290.0 and 300.0
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
120.0 single section
Power Dissipation Rating Per Section In Watts
0.5 free air single section
Resistance Tolerance Per Section In Percent
-10.0/+10.0 single section
Actuator Travel Control Feature
Stops
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 single section
Standard Taper Curve Per Section
A single section
Terminal Type And Quantity
3 tab, solder lug
NSN
5905-01-346-0759
Part Number
28M911
Description
Resistor,variable,nonwire Wound,
CAGE
50139

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

Part 28M911 NSN 5905-01-346-0759

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37405
FIIG:
A002A0
Concept No.:
1
App. Key:
B
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:
B
ESD:
B
MMAC:
EH
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: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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