Model: 749

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
5
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 1.3115 inches and 1.3120 inches
Pilot Length
0.0620 inches
Overall Length
3.847 inches
Undercut Diameter
1.438 inches
Undercut Width
0.0730 inches
Body Diameter
1.453 inches
Shaft Diameter
0.250 inches
Shaft Length
0.750 inches
Body Length
3.128 inches
Overall Diameter
1.453 inches
Mounting Lip Diameter
1.4380 inches
Mounting Lip Depth
0.0930 inches
Undercut Diameter
0.125 inches
Shaft Style
Round, stepped
Shaft Bearing Type
Ball
Actuator Type
Double ended shaft
Effective Electrical Rotation In Deg Angular Rotation
354.0
Maximum Starting Torque
3.10 inch-ounces
Maximum Running Torque
2.60 inch-ounces
Shaft End Play
0.0025 inches
Shaft Runout
0.001 inches
Undercut Length
0.375 inches
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Clamp ring
Electrical Resistance Per Section
10.0 percent, rated amperes c and better v.G. Stepping
Electrical Resistance Per Section
10.0 percent, rated amperes c drop siding
Electrical Resistance Per Section
100.0 percent, rated amperes c and better industrial clears
Electrical Resistance Per Section
14.6 percent, rated amperes c and better finish
Electrical Resistance Per Section
9.75 percent, rated amperes c and better select
Electrical Resistance Per Section
14.6 kilohms 1st section
Electrical Resistance Per Section
9.75 kilohms 3rd section
Electrical Resistance Per Section
10.0 kilohms 4th section
Electrical Resistance Per Section
10.0 kilohms 5th section
Electrical Resistance Per Section
100.0 kilohms 2nd section
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-0.15/+0.15 3rd section
Function Conformity Tolerance Per Section
-0.20/+0.20 2nd section
Function Conformity Tolerance Per Section
-0.25/+0.25 1st section
Function Conformity Tolerance Per Section
-4.00/+4.00 4th section
Function Conformity Tolerance Per Section
-4.00/+4.00 5th section
Function Conformity Tolerance Per Section
-0.15 to 0.15 3rd section
Function Conformity Tolerance Per Section
-0.20 to 0.20 2nd section
Function Conformity Tolerance Per Section
-0.25 to 0.25 1st section
Function Conformity Tolerance Per Section
-4.00 to 4.00 4th section
Function Conformity Tolerance Per Section
-4.00 to 4.00 5th section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 all sections
Power Dissipation Rating Per Section In Watts
2.0 free air all sections
Function Conformity Per Section
All sections independent linearity
Fixed Tap Quantity Per Section
1 3rd section
Resistance Tolerance Per Section In Percent
-1.0/+1.0 1st section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 2nd section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 3rd section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 4th section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 5th section
Resistance Tolerance Per Section In Percent
-5.0 to 5.0 3rd section
Actuator Travel Control Feature
Continuous motion
Tap Location From Ccw Terminal Per Section In Ohms
7300.0 all sections
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
16 tab, solder lug
NSN
5905-00-072-8531
Part Number
749
Description
Resistor,variable,wire Wound,pre
CAGE
12205

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 749 NSN 5905-00-072-8531

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:
A
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

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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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