Model: S-1849-A-1971

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
2
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 2.8740 inches and 2.8750 inches
Pilot Length
Between 0.0570 inches and 0.0670 inches
Undercut Diameter
Between 2.995 inches and 3.005 inches
Undercut Width
0.0730 inches
Body Diameter
Between 2.995 inches and 3.005 inches
Angle Of Mounting Hole In Deg
60.0
Angle Between Centerlines Of Mounting Holes In Deg
120.0
Shaft Diameter
Between 0.2494 inches and 0.2497 inches
Shaft Length
Between 0.485 inches and 0.515 inches
Body Length
1.292 inches
Mounting Lip Diameter
Between 2.9950 inches and 3.0050 inches
Mounting Lip Depth
Between 0.0880 inches and 0.0980 inches
Mounting Hole/stud Circle Diameter
Between 1.745 inches and 1.755 inches
Shaft Style
Round, slotted
Shaft Bearing Type
Bearing
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
250.0
Maximum Starting Torque
2.75 inch-ounces
Maximum Running Torque
1.60 inch-ounces
Shaft Runout
0.002 inches
Fragility Factor
Moderately rugged
Screw Thread Diameter
0.164 inches
Screw Thread Series Designator
Unc
Screw Thready Qty Per Inch (tpi)
32.0
Mounting Facility Quantity
3
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Threaded hole
Electrical Resistance Per Section
10.0 kilohms 1st section and 13.7 kilohms 2nd section
Rotary Actuator Travel In Angular Deg
250.0
Function Conformity Tolerance Per Section
-0.15 to 0.15 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
6.0 free air all sections
Function Conformity Per Section
All sections terminal base linearity
Resistance Tolerance Per Section In Percent
-3.0 to 3.0 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
70.0 all sections
Terminal Type And Quantity
6 turret
NSN
5905-01-227-0906
Part Number
S-1849-A-1971
Description
Resistor,variable,wire Wound,pre
CAGE
50406

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 S-1849-A-1971 NSN 5905-01-227-0906

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:
B
ESD:
B
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:
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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