Model: 381-1721-120

Non Wire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Rectangular w/mounting holes
Reliability Indicator
Established
Reliability Failure Rate Level In Percent
0.100
Overall Length
0.535 inches
Terminal Length
6.000 inches
Overall Height
0.500 inches
Overall Width
Between 0.182 inches and 0.197 inches
Mounting Hole Diameter
Between 0.090 inches and 0.098 inches
Shaft Diameter
0.035 inches
Shaft Length
0.078 inches
Body Length
0.500 inches
Body Width
Between 0.182 inches and 0.197 inches
Body Height
0.500 inches
Shaft Style
Round, slotted
Actuator Type
Single shaft
Lateral Distance Between Mounting Hole Centers
Between 0.513 inches and 0.526 inches
Mounting Facility Quantity
2
Terminal Location
Rear end
Mounting Method
Unthreaded hole
Electrical Resistance Per Section
5.000 kilohms single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
150.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0/+50.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0 to 50.0 single section
Power Dissipation Rating Per Section In Watts
0.75 free air single section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 single section
Resistance Tolerance Per Section In Percent
-5.0 to 5.0 single section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
85.0 single section
Standard Taper Curve Per Section
A single section
Test Data Document
81349-milr39015/2 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
3 wire lead
NSN
5905-00-271-7421
Part Number
381-1721-120
Description
Resistor,variable,wire Wound,non
CAGE
94987

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

Part 381-1721-120 NSN 5905-00-271-7421

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37406
FIIG:
A002A0
Concept No.:
1
App. Key:
A
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:
658
TCC:
3
SHC:
9
ACC:
Instruments/Radio

End Items End applications NSN 5905-00-271-7421 is a component of

  • An/tpn-18 Radar Set
  • Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
  • Phoenix (aim-54) Air-to-air Missile
  • Sparrow (aim-7) Air-to-air Missile
  • C-2a (reprocured) Aircraft
  • An/uya-4(v) Tactical Data System
  • Mh-53e Helicopter
  • Ah-1w Advance Attack Helicopter
  • Mx Peacekeeper Missile Support Equipment
  • Avionics Stabilizaiton/instrumentation
  • 009942152
  • Displacement Gyroscope
  • 001387990
  • Radio Receiver-transmitter
  • 011218984
  • Countermea Test Set
  • 005430012
  • Telephone Set
  • 007618228
  • Radar Set Subassembly
  • 010574037
  • Radio Set
  • 008727046
  • Flight Control System Test Set
  • 004927227
  • Circuit Card Assembly
  • 010177040
  • Fire Direction Cent
  • 003036728
  • Displacement Gyroscope
  • 001652970
  • Radio Set
  • 000823598
  • Radio Set
  • 001793126
  • Antenna Coupler
  • 001795211
  • Power Supply
  • 001799148
  • Test Facilities Set
  • 009857574
  • Distribution Box
  • 011218984
  • Countermea Test Set
  • 010709415
  • Radar Set
  • 012446097
  • Radio Frequency Power Divider
  • 014410117
  • Electronic Components Assembly
  • 014535892
  • Receiver-transmitter Subassembly
  • 013014484
  • Radio Frequency Power Divider
  • 013489606
  • Circuit Card Assembly
  • 012164822
  • Displacement Gyroscope
  • 011667416
  • Resistor Assembly
  • 012701048
  • Power Supply
  • 011116860
  • Radar Transmitter Subassembly
  • 001378548
  • Air Traffic Control
  • 001378548
  • Air Traffic Control

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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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