Model: 7221-391-1

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Overall Length
2.145 inches
Terminal Length
0.188 inches
Body Diameter
0.875 inches
Shaft Diameter
0.125 inches
Shaft Length
Between 0.656 inches and 0.719 inches
Mounting Bushing Length
0.250 inches
Body Length
Between 1.448 inches and 1.466 inches
Overall Diameter
1.063 inches
Shaft Style
Round
Shaft Bearing Type
Sleeve
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
3600.0
Maximum Starting Torque
0.50 inch-ounces
Maximum Running Torque
0.50 inch-ounces
Maximum Stop Torque
128.00 inch-ounces
Shaft End Play
0.00500 inches
Shaft Runout
0.0005 inches
Lateral Runout
0.003 inches
Pilot Diameter Runout
0.00100 inches
Shaft Radial Play
0.003 inches
Screw Thread Diameter
0.250 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Longitudinally positioned on the circumference
Mounting Method
Standard bushing
Electrical Resistance Per Section
2.500 kilohms single section
Rotary Actuator Travel In Angular Deg
3600.0
Function Conformity Tolerance Per Section
-0.25/+0.25 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
85.0 single section
Power Dissipation Rating Per Section In Watts
1.5 free air single section
Function Conformity Per Section
Single section independent linearity
Resistance Tolerance Per Section In Percent
-1.0/+1.0 single section
Actuator Travel Control Feature
Stops
Function Characteristic Per Section
Single section linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 single section
Terminal Type And Quantity
3 turret
NSN
5905-00-768-5691
Part Number
7221-391-1
Description
Resistor,variable,wire Wound,pre
CAGE
73138

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 7221-391-1 NSN 5905-00-768-5691

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:
--
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
--
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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